diff --git a/Documentation/git-last-modified.adoc b/Documentation/git-last-modified.adoc
index 2e5f370c15..a3992db3f2 100644
--- a/Documentation/git-last-modified.adoc
+++ b/Documentation/git-last-modified.adoc
@@ -9,7 +9,7 @@ git-last-modified - EXPERIMENTAL: Show when files were last modified
 SYNOPSIS
 --------
 [synopsis]
-git last-modified [--recursive] [--show-trees] [-z]
+git last-modified [--recursive] [--show-trees] [--max-depth=<depth>] [-z]
 		  [<revision-range>] [[--] <path>...]
 
 DESCRIPTION
@@ -33,6 +33,12 @@ OPTIONS
 	Show tree entries even when recursing into them. It has no effect
 	without `--recursive`.
 
+`--max-depth=<depth>`::
+	For each pathspec given on the command line, descend at most `<depth>`
+	levels of directories. A negative value means no limit.
+	Setting a positive value implies `--recursive`.
+	Cannot be combined with wildcards in the pathspec.
+
 `-z`::
 	Terminate each line with a _NUL_ character rather than a newline.
 
diff --git a/builtin/last-modified.c b/builtin/last-modified.c
index bc51d16b92..630687b81f 100644
--- a/builtin/last-modified.c
+++ b/builtin/last-modified.c
@@ -511,7 +511,7 @@ int cmd_last_modified(int argc, const char **argv, const char *prefix,
 	struct last_modified lm = { 0 };
 
 	const char * const last_modified_usage[] = {
-		N_("git last-modified [--recursive] [--show-trees] [-z]\n"
+		N_("git last-modified [--recursive] [--show-trees] [--max-depth=<depth>] [-z]\n"
 		   "                  [<revision-range>] [[--] <path>...]"),
 		NULL
 	};