diff --git a/git.c b/git.c
index 4b7bd77b80..194a1ecfd9 100644
--- a/git.c
+++ b/git.c
@@ -29,6 +29,7 @@ const char git_usage_string[] =
 	   "           [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n"
 	   "           [-p | --paginate | -P | --no-pager] [--no-replace-objects] [--bare]\n"
 	   "           [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n"
+	   "           [--super-prefix=<path>]\n"
 	   "           <command> [<args>]");
 
 const char git_more_info_string[] =