diff --git a/builtin/am.c b/builtin/am.c
index 739b34dcf2..9e2ae5cba4 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -2222,7 +2222,7 @@ int cmd_am(int argc, const char **argv, const char *prefix)
 	int in_progress;
 
 	const char * const usage[] = {
-		N_("git am [<options>] [(<mbox>|<Maildir>)...]"),
+		N_("git am [<options>] [(<mbox> | <Maildir>)...]"),
 		N_("git am [<options>] (--continue | --skip | --abort)"),
 		NULL
 	};