diff --git a/git-gc.sh b/git-gc.sh
index 1a45de5dff..436d7caff5 100755
--- a/git-gc.sh
+++ b/git-gc.sh
@@ -4,7 +4,7 @@
 #
 # Cleanup unreachable files and optimize the repository.
 
-USAGE='git-gc [--prune]'
+USAGE='[--prune]'
 SUBDIRECTORY_OK=Yes
 . git-sh-setup