diff --git a/Documentation/config.txt b/Documentation/config.txt
index 2700a1bb83..b56c2eb2a8 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1231,7 +1231,7 @@ gc.pruneexpire::
 
 gc.pruneworktreesexpire::
 	When 'git gc' is run, it will call
-	'prune --worktrees --expire 3.months.ago'.
+	'git worktree prune --expire 3.months.ago'.
 	Override the grace period with this config variable. The value
 	"now" may be used to disable the grace period and prune
 	$GIT_DIR/worktrees immediately.