diff --git a/archive.c b/archive.c
index 310672b479..fcd474c682 100644
--- a/archive.c
+++ b/archive.c
@@ -519,7 +519,7 @@ static void parse_treeish_arg(const char **argv,
 	if (ar_args->mtime_option)
 		archive_time = approxidate(ar_args->mtime_option);
 
-	tree = parse_tree_indirect(&oid);
+	tree = repo_parse_tree_indirect(the_repository, &oid);
 	if (!tree)
 		die(_("not a tree object: %s"), oid_to_hex(&oid));
 
diff --git a/builtin/am.c b/builtin/am.c
index 277c2e7937..b66a33d8a8 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -1998,7 +1998,7 @@ static int fast_forward_to(struct tree *head, struct tree *remote, int reset)
 	struct unpack_trees_options opts;
 	struct tree_desc t[2];
 
-	if (parse_tree(head) || parse_tree(remote))
+	if (repo_parse_tree(the_repository, head) || repo_parse_tree(the_repository, remote))
 		return -1;
 
 	repo_hold_locked_index(the_repository, &lock_file, LOCK_DIE_ON_ERROR);
@@ -2038,7 +2038,7 @@ static int merge_tree(struct tree *tree)
 	struct unpack_trees_options opts;
 	struct tree_desc t[1];
 
-	if (parse_tree(tree))
+	if (repo_parse_tree(the_repository, tree))
 		return -1;
 
 	repo_hold_locked_index(the_repository, &lock_file, LOCK_DIE_ON_ERROR);
@@ -2071,11 +2071,11 @@ static int clean_index(const struct object_id *head, const struct object_id *rem
 	struct tree *head_tree, *remote_tree, *index_tree;
 	struct object_id index;
 
-	head_tree = parse_tree_indirect(head);
+	head_tree = repo_parse_tree_indirect(the_repository, head);
 	if (!head_tree)
 		return error(_("Could not parse object '%s'."), oid_to_hex(head));
 
-	remote_tree = parse_tree_indirect(remote);
+	remote_tree = repo_parse_tree_indirect(the_repository, remote);
 	if (!remote_tree)
 		return error(_("Could not parse object '%s'."), oid_to_hex(remote));
 
@@ -2089,7 +2089,7 @@ static int clean_index(const struct object_id *head, const struct object_id *rem
 				0, NULL))
 		return -1;
 
-	index_tree = parse_tree_indirect(&index);
+	index_tree = repo_parse_tree_indirect(the_repository, &index);
 	if (!index_tree)
 		return error(_("Could not parse object '%s'."), oid_to_hex(&index));
 
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 261699e2f5..0ba4f03f2e 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -724,7 +724,7 @@ static int reset_tree(struct tree *tree, const struct checkout_opts *o,
 	init_checkout_metadata(&opts.meta, info->refname,
 			       info->commit ? &info->commit->object.oid : null_oid(the_hash_algo),
 			       NULL);
-	if (parse_tree(tree) < 0)
+	if (repo_parse_tree(the_repository, tree) < 0)
 		return 128;
 	init_tree_desc(&tree_desc, &tree->object.oid, tree->buffer, tree->size);
 	switch (unpack_trees(1, &tree_desc, &opts)) {
@@ -803,7 +803,8 @@ static int merge_working_tree(const struct checkout_opts *opts,
 	if (opts->new_orphan_branch && opts->orphan_from_empty_tree) {
 		if (new_branch_info->commit)
 			BUG("'switch --orphan' should never accept a commit as starting point");
-		new_tree = parse_tree_indirect(the_hash_algo->empty_tree);
+		new_tree = repo_parse_tree_indirect(the_repository,
+						    the_hash_algo->empty_tree);
 		if (!new_tree)
 			BUG("unable to read empty tree");
 	} else {
@@ -841,14 +842,15 @@ static int merge_working_tree(const struct checkout_opts *opts,
 		old_commit_oid = old_branch_info->commit ?
 			&old_branch_info->commit->object.oid :
 			the_hash_algo->empty_tree;
-		tree = parse_tree_indirect(old_commit_oid);
+		tree = repo_parse_tree_indirect(the_repository,
+						old_commit_oid);
 		if (!tree)
 			die(_("unable to parse commit %s"),
 				oid_to_hex(old_commit_oid));
 
 		init_tree_desc(&trees[0], &tree->object.oid,
 			       tree->buffer, tree->size);
-		if (parse_tree(new_tree) < 0)
+		if (repo_parse_tree(the_repository, new_tree) < 0)
 			die(NULL);
 		tree = new_tree;
 		init_tree_desc(&trees[1], &tree->object.oid,
@@ -1278,7 +1280,7 @@ static void setup_new_branch_info_and_source_tree(
 	new_branch_info->commit = lookup_commit_reference_gently(the_repository, rev, 1);
 	if (!new_branch_info->commit) {
 		/* not a commit */
-		*source_tree = parse_tree_indirect(rev);
+		*source_tree = repo_parse_tree_indirect(the_repository, rev);
 		if (!*source_tree)
 			die(_("unable to read tree (%s)"), oid_to_hex(rev));
 	} else {
diff --git a/builtin/clone.c b/builtin/clone.c
index b19b302b06..b40cee5968 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -680,10 +680,10 @@ static int checkout(int submodule_progress, int filter_submodules,
 	opts.dst_index = the_repository->index;
 	init_checkout_metadata(&opts.meta, head, &oid, NULL);
 
-	tree = parse_tree_indirect(&oid);
+	tree = repo_parse_tree_indirect(the_repository, &oid);
 	if (!tree)
 		die(_("unable to parse commit %s"), oid_to_hex(&oid));
-	if (parse_tree(tree) < 0)
+	if (repo_parse_tree(the_repository, tree) < 0)
 		exit(128);
 	init_tree_desc(&t, &tree->object.oid, tree->buffer, tree->size);
 	if (unpack_trees(1, &t, &opts) < 0)
diff --git a/builtin/commit.c b/builtin/commit.c
index 0243f17d53..8e901fe8db 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -327,10 +327,11 @@ static void create_base_index(const struct commit *current_head)
 	opts.dst_index = the_repository->index;
 
 	opts.fn = oneway_merge;
-	tree = parse_tree_indirect(&current_head->object.oid);
+	tree = repo_parse_tree_indirect(the_repository,
+					&current_head->object.oid);
 	if (!tree)
 		die(_("failed to unpack HEAD tree object"));
-	if (parse_tree(tree) < 0)
+	if (repo_parse_tree(the_repository, tree) < 0)
 		exit(128);
 	init_tree_desc(&t, &tree->object.oid, tree->buffer, tree->size);
 	if (unpack_trees(1, &t, &opts))
diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c
index 49dd4d00eb..740d9a791c 100644
--- a/builtin/diff-tree.c
+++ b/builtin/diff-tree.c
@@ -52,7 +52,7 @@ static int stdin_diff_trees(struct tree *tree1, const char *p)
 	if (!isspace(*p++) || parse_oid_hex(p, &oid, &p) || *p)
 		return error("Need exactly two trees, separated by a space");
 	tree2 = lookup_tree(the_repository, &oid);
-	if (!tree2 || parse_tree(tree2))
+	if (!tree2 || repo_parse_tree(the_repository, tree2))
 		return -1;
 	printf("%s %s\n", oid_to_hex(&tree1->object.oid),
 			  oid_to_hex(&tree2->object.oid));
diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c
index ec6940fc7c..113e4a960d 100644
--- a/builtin/ls-tree.c
+++ b/builtin/ls-tree.c
@@ -421,7 +421,7 @@ int cmd_ls_tree(int argc,
 	for (i = 0; i < options.pathspec.nr; i++)
 		options.pathspec.items[i].nowildcard_len = options.pathspec.items[i].len;
 	options.pathspec.has_wildcard = 0;
-	tree = parse_tree_indirect(&oid);
+	tree = repo_parse_tree_indirect(the_repository, &oid);
 	if (!tree)
 		die("not a tree object");
 	/*
diff --git a/builtin/merge-tree.c b/builtin/merge-tree.c
index 1c063d9a41..a6e6d5b555 100644
--- a/builtin/merge-tree.c
+++ b/builtin/merge-tree.c
@@ -447,17 +447,20 @@ static int real_merge(struct merge_tree_options *o,
 
 		if (repo_get_oid_treeish(the_repository, merge_base, &base_oid))
 			die(_("could not parse as tree '%s'"), merge_base);
-		base_tree = parse_tree_indirect(&base_oid);
+		base_tree = repo_parse_tree_indirect(the_repository,
+						     &base_oid);
 		if (!base_tree)
 			die(_("unable to read tree (%s)"), oid_to_hex(&base_oid));
 		if (repo_get_oid_treeish(the_repository, branch1, &head_oid))
 			die(_("could not parse as tree '%s'"), branch1);
-		parent1_tree = parse_tree_indirect(&head_oid);
+		parent1_tree = repo_parse_tree_indirect(the_repository,
+							&head_oid);
 		if (!parent1_tree)
 			die(_("unable to read tree (%s)"), oid_to_hex(&head_oid));
 		if (repo_get_oid_treeish(the_repository, branch2, &merge_oid))
 			die(_("could not parse as tree '%s'"), branch2);
-		parent2_tree = parse_tree_indirect(&merge_oid);
+		parent2_tree = repo_parse_tree_indirect(the_repository,
+							&merge_oid);
 		if (!parent2_tree)
 			die(_("unable to read tree (%s)"), oid_to_hex(&merge_oid));
 
diff --git a/builtin/merge.c b/builtin/merge.c
index c421a11b0b..50001b4c59 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -756,19 +756,19 @@ static int read_tree_trivial(struct object_id *common, struct object_id *head,
 	opts.trivial_merges_only = 1;
 	opts.merge = 1;
 	opts.preserve_ignored = 0; /* FIXME: !overwrite_ignore */
-	trees[nr_trees] = parse_tree_indirect(common);
+	trees[nr_trees] = repo_parse_tree_indirect(the_repository, common);
 	if (!trees[nr_trees++])
 		return -1;
-	trees[nr_trees] = parse_tree_indirect(head);
+	trees[nr_trees] = repo_parse_tree_indirect(the_repository, head);
 	if (!trees[nr_trees++])
 		return -1;
-	trees[nr_trees] = parse_tree_indirect(one);
+	trees[nr_trees] = repo_parse_tree_indirect(the_repository, one);
 	if (!trees[nr_trees++])
 		return -1;
 	opts.fn = threeway_merge;
 	cache_tree_free(&the_repository->index->cache_tree);
 	for (i = 0; i < nr_trees; i++) {
-		parse_tree(trees[i]);
+		repo_parse_tree(the_repository, trees[i]);
 		init_tree_desc(t+i, &trees[i]->object.oid,
 			       trees[i]->buffer, trees[i]->size);
 	}
diff --git a/builtin/read-tree.c b/builtin/read-tree.c
index 34f7a59f38..460b21e40a 100644
--- a/builtin/read-tree.c
+++ b/builtin/read-tree.c
@@ -32,7 +32,7 @@ static int list_tree(struct object_id *oid)
 
 	if (nr_trees >= MAX_UNPACK_TREES)
 		die("I cannot read more than %d trees", MAX_UNPACK_TREES);
-	tree = parse_tree_indirect(oid);
+	tree = repo_parse_tree_indirect(the_repository, oid);
 	if (!tree)
 		return -1;
 	trees[nr_trees++] = tree;
@@ -268,7 +268,7 @@ int cmd_read_tree(int argc,
 	cache_tree_free(&the_repository->index->cache_tree);
 	for (i = 0; i < nr_trees; i++) {
 		struct tree *tree = trees[i];
-		if (parse_tree(tree) < 0)
+		if (repo_parse_tree(the_repository, tree) < 0)
 			return 128;
 		init_tree_desc(t+i, &tree->object.oid, tree->buffer, tree->size);
 	}
diff --git a/builtin/reset.c b/builtin/reset.c
index ed35802af1..c48d9845f8 100644
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -118,7 +118,7 @@ static int reset_index(const char *ref, const struct object_id *oid, int reset_t
 		goto out;
 
 	if (reset_type == MIXED || reset_type == HARD) {
-		tree = parse_tree_indirect(oid);
+		tree = repo_parse_tree_indirect(the_repository, oid);
 		if (!tree) {
 			error(_("unable to read tree (%s)"), oid_to_hex(oid));
 			goto out;
@@ -417,7 +417,7 @@ int cmd_reset(int argc,
 		struct tree *tree;
 		if (repo_get_oid_treeish(the_repository, rev, &oid))
 			die(_("Failed to resolve '%s' as a valid tree."), rev);
-		tree = parse_tree_indirect(&oid);
+		tree = repo_parse_tree_indirect(the_repository, &oid);
 		if (!tree)
 			die(_("Could not parse object '%s'."), rev);
 		oidcpy(&oid, &tree->object.oid);
diff --git a/builtin/stash.c b/builtin/stash.c
index 948eba06fb..193e3ea47a 100644
--- a/builtin/stash.c
+++ b/builtin/stash.c
@@ -347,8 +347,8 @@ static int reset_tree(struct object_id *i_tree, int update, int reset)
 
 	memset(&opts, 0, sizeof(opts));
 
-	tree = parse_tree_indirect(i_tree);
-	if (parse_tree(tree))
+	tree = repo_parse_tree_indirect(the_repository, i_tree);
+	if (repo_parse_tree(the_repository, tree))
 		return -1;
 
 	init_tree_desc(t, &tree->object.oid, tree->buffer, tree->size);
@@ -940,8 +940,8 @@ static void diff_include_untracked(const struct stash_info *info, struct diff_op
 	struct unpack_trees_options unpack_tree_opt = { 0 };
 
 	for (size_t i = 0; i < ARRAY_SIZE(oid); i++) {
-		tree[i] = parse_tree_indirect(oid[i]);
-		if (parse_tree(tree[i]) < 0)
+		tree[i] = repo_parse_tree_indirect(the_repository, oid[i]);
+		if (repo_parse_tree(the_repository, tree[i]) < 0)
 			die(_("failed to parse tree"));
 		init_tree_desc(&tree_desc[i], &tree[i]->object.oid,
 			       tree[i]->buffer, tree[i]->size);
diff --git a/cache-tree.c b/cache-tree.c
index 2d8947b518..16c3a36b48 100644
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -813,7 +813,7 @@ static void prime_cache_tree_rec(struct repository *r,
 			struct cache_tree_sub *sub;
 			struct tree *subtree = lookup_tree(r, &entry.oid);
 
-			if (parse_tree(subtree) < 0)
+			if (repo_parse_tree(the_repository, subtree) < 0)
 				exit(128);
 			sub = cache_tree_sub(it, entry.path);
 			sub->cache_tree = cache_tree();
diff --git a/contrib/coccinelle/the_repository.cocci b/contrib/coccinelle/the_repository.cocci
index ea7fe1c8db..a1f6f5ac06 100644
--- a/contrib/coccinelle/the_repository.cocci
+++ b/contrib/coccinelle/the_repository.cocci
@@ -117,6 +117,16 @@
 |
 - init_revisions
 + repo_init_revisions
+// tree.h
+|
+- parse_tree
++ repo_parse_tree
+|
+- parse_tree_gently
++ repo_parse_tree_gently
+|
+- parse_tree_indirect
++ repo_parse_tree_indirect
 )
   (
 + the_repository,
diff --git a/diff-lib.c b/diff-lib.c
index 5307390ff3..506000761d 100644
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -552,7 +552,7 @@ static int diff_cache(struct rev_info *revs,
 	struct tree_desc t;
 	struct unpack_trees_options opts;
 
-	tree = parse_tree_indirect(tree_oid);
+	tree = repo_parse_tree_indirect(the_repository, tree_oid);
 	if (!tree)
 		return error("bad tree object %s",
 			     tree_name ? tree_name : oid_to_hex(tree_oid));
diff --git a/fsck.c b/fsck.c
index fae18d8561..5532f5ae9f 100644
--- a/fsck.c
+++ b/fsck.c
@@ -360,7 +360,7 @@ static int fsck_walk_tree(struct tree *tree, void *data, struct fsck_options *op
 	int res = 0;
 	const char *name;
 
-	if (parse_tree(tree))
+	if (repo_parse_tree(the_repository, tree))
 		return -1;
 
 	name = fsck_get_object_name(options, &tree->object.oid);
diff --git a/http-push.c b/http-push.c
index 60a9b75620..cc0f809346 100644
--- a/http-push.c
+++ b/http-push.c
@@ -1311,7 +1311,7 @@ static struct object_list **process_tree(struct tree *tree,
 
 	if (obj->flags & (UNINTERESTING | SEEN))
 		return p;
-	if (parse_tree(tree) < 0)
+	if (repo_parse_tree(the_repository, tree) < 0)
 		die("bad tree object %s", oid_to_hex(&obj->oid));
 
 	obj->flags |= SEEN;
diff --git a/list-objects.c b/list-objects.c
index 1279676ddc..91b23e22f7 100644
--- a/list-objects.c
+++ b/list-objects.c
@@ -170,7 +170,7 @@ static void process_tree(struct traversal_context *ctx,
 	if (ctx->depth > revs->repo->settings.max_allowed_tree_depth)
 		die("exceeded maximum allowed tree depth");
 
-	failed_parse = parse_tree_gently(tree, 1);
+	failed_parse = repo_parse_tree_gently(the_repository, tree, 1);
 	if (failed_parse) {
 		if (revs->ignore_missing_links)
 			return;
diff --git a/merge-ort.c b/merge-ort.c
index 2b837a58c3..e80e4f735a 100644
--- a/merge-ort.c
+++ b/merge-ort.c
@@ -1732,9 +1732,9 @@ static int collect_merge_info(struct merge_options *opt,
 	info.data = opt;
 	info.show_all_errors = 1;
 
-	if (parse_tree(merge_base) < 0 ||
-	    parse_tree(side1) < 0 ||
-	    parse_tree(side2) < 0)
+	if (repo_parse_tree(the_repository, merge_base) < 0 ||
+	    repo_parse_tree(the_repository, side1) < 0 ||
+	    repo_parse_tree(the_repository, side2) < 0)
 		return -1;
 	init_tree_desc(t + 0, &merge_base->object.oid,
 		       merge_base->buffer, merge_base->size);
@@ -4619,10 +4619,10 @@ static int checkout(struct merge_options *opt,
 	unpack_opts.verbose_update = (opt->verbosity > 2);
 	unpack_opts.fn = twoway_merge;
 	unpack_opts.preserve_ignored = 0; /* FIXME: !opts->overwrite_ignore */
-	if (parse_tree(prev) < 0)
+	if (repo_parse_tree(the_repository, prev) < 0)
 		return -1;
 	init_tree_desc(&trees[0], &prev->object.oid, prev->buffer, prev->size);
-	if (parse_tree(next) < 0)
+	if (repo_parse_tree(the_repository, next) < 0)
 		return -1;
 	init_tree_desc(&trees[1], &next->object.oid, next->buffer, next->size);
 
@@ -5280,7 +5280,8 @@ redo:
 
 	if (result->clean >= 0) {
 		if (!opt->mergeability_only) {
-			result->tree = parse_tree_indirect(&working_tree_oid);
+			result->tree = repo_parse_tree_indirect(the_repository,
+								&working_tree_oid);
 			if (!result->tree)
 				die(_("unable to read tree (%s)"),
 				    oid_to_hex(&working_tree_oid));
diff --git a/merge.c b/merge.c
index 5ecaf508e4..0f5e823e63 100644
--- a/merge.c
+++ b/merge.c
@@ -68,18 +68,18 @@ int checkout_fast_forward(struct repository *r,
 	memset(&trees, 0, sizeof(trees));
 	memset(&t, 0, sizeof(t));
 
-	trees[nr_trees] = parse_tree_indirect(head);
+	trees[nr_trees] = repo_parse_tree_indirect(the_repository, head);
 	if (!trees[nr_trees++]) {
 		rollback_lock_file(&lock_file);
 		return -1;
 	}
-	trees[nr_trees] = parse_tree_indirect(remote);
+	trees[nr_trees] = repo_parse_tree_indirect(the_repository, remote);
 	if (!trees[nr_trees++]) {
 		rollback_lock_file(&lock_file);
 		return -1;
 	}
 	for (i = 0; i < nr_trees; i++) {
-		if (parse_tree(trees[i]) < 0) {
+		if (repo_parse_tree(the_repository, trees[i]) < 0) {
 			rollback_lock_file(&lock_file);
 			return -1;
 		}
diff --git a/read-cache.c b/read-cache.c
index 990d4ead0d..e9c1b23e48 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -3807,7 +3807,7 @@ void overlay_tree_on_index(struct index_state *istate,
 
 	if (repo_get_oid(the_repository, tree_name, &oid))
 		die("tree-ish %s not found.", tree_name);
-	tree = parse_tree_indirect(&oid);
+	tree = repo_parse_tree_indirect(the_repository, &oid);
 	if (!tree)
 		die("bad tree-ish %s", tree_name);
 
diff --git a/reset.c b/reset.c
index bb59027181..46e30e6394 100644
--- a/reset.c
+++ b/reset.c
@@ -163,7 +163,7 @@ int reset_head(struct repository *r, const struct reset_head_opts *opts)
 		goto leave_reset_head;
 	}
 
-	tree = parse_tree_indirect(oid);
+	tree = repo_parse_tree_indirect(the_repository, oid);
 	if (!tree) {
 		ret = error(_("unable to read tree (%s)"), oid_to_hex(oid));
 		goto leave_reset_head;
diff --git a/revision.c b/revision.c
index 5f0850ae5c..426d19a2c6 100644
--- a/revision.c
+++ b/revision.c
@@ -72,7 +72,7 @@ static void mark_tree_contents_uninteresting(struct repository *r,
 	struct tree_desc desc;
 	struct name_entry entry;
 
-	if (parse_tree_gently(tree, 1) < 0)
+	if (repo_parse_tree_gently(the_repository, tree, 1) < 0)
 		return;
 
 	init_tree_desc(&desc, &tree->object.oid, tree->buffer, tree->size);
@@ -179,7 +179,7 @@ static void add_children_by_path(struct repository *r,
 	if (!tree)
 		return;
 
-	if (parse_tree_gently(tree, 1) < 0)
+	if (repo_parse_tree_gently(the_repository, tree, 1) < 0)
 		return;
 
 	init_tree_desc(&desc, &tree->object.oid, tree->buffer, tree->size);
diff --git a/sequencer.c b/sequencer.c
index 71ed31c774..cccde58bee 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -767,7 +767,7 @@ static int do_recursive_merge(struct repository *r,
 		o.buffer_output = 2;
 	o.show_rename_progress = 1;
 
-	head_tree = parse_tree_indirect(head);
+	head_tree = repo_parse_tree_indirect(the_repository, head);
 	if (!head_tree)
 		return error(_("unable to read tree (%s)"), oid_to_hex(head));
 	next_tree = next ? repo_get_commit_tree(r, next) : empty_tree(r);
@@ -4052,7 +4052,7 @@ static int do_reset(struct repository *r,
 		goto cleanup;
 	}
 
-	tree = parse_tree_indirect(&oid);
+	tree = repo_parse_tree_indirect(the_repository, &oid);
 	if (!tree)
 		return error(_("unable to read tree (%s)"), oid_to_hex(&oid));
 	prime_cache_tree(r, r->index, tree);
diff --git a/t/helper/test-cache-tree.c b/t/helper/test-cache-tree.c
index 3ae45cec3b..ff61d0ca7e 100644
--- a/t/helper/test-cache-tree.c
+++ b/t/helper/test-cache-tree.c
@@ -41,7 +41,7 @@ int cmd__cache_tree(int argc, const char **argv)
 		die(_("unable to read index file"));
 
 	oidcpy(&oid, &the_repository->index->cache_tree->oid);
-	tree = parse_tree_indirect(&oid);
+	tree = repo_parse_tree_indirect(the_repository, &oid);
 	if (!tree)
 		die(_("not a tree object: %s"), oid_to_hex(&oid));
 
diff --git a/t/helper/test-match-trees.c b/t/helper/test-match-trees.c
index e0e2048320..2ed064b971 100644
--- a/t/helper/test-match-trees.c
+++ b/t/helper/test-match-trees.c
@@ -19,10 +19,10 @@ int cmd__match_trees(int ac UNUSED, const char **av)
 		die("cannot parse %s as an object name", av[1]);
 	if (repo_get_oid(the_repository, av[2], &hash2))
 		die("cannot parse %s as an object name", av[2]);
-	one = parse_tree_indirect(&hash1);
+	one = repo_parse_tree_indirect(the_repository, &hash1);
 	if (!one)
 		die("not a tree-ish %s", av[1]);
-	two = parse_tree_indirect(&hash2);
+	two = repo_parse_tree_indirect(the_repository, &hash2);
 	if (!two)
 		die("not a tree-ish %s", av[2]);
 
diff --git a/walker.c b/walker.c
index 2891563b03..91332539d3 100644
--- a/walker.c
+++ b/walker.c
@@ -45,7 +45,7 @@ static int process_tree(struct walker *walker, struct tree *tree)
 	struct tree_desc desc;
 	struct name_entry entry;
 
-	if (parse_tree(tree))
+	if (repo_parse_tree(the_repository, tree))
 		return -1;
 
 	init_tree_desc(&desc, &tree->object.oid, tree->buffer, tree->size);