diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index f21737b97f..349c88b428 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -428,7 +428,7 @@ static void refuse_unconfigured_deny_delete_current(void)
 static void merge_worktree(unsigned char *sha1)
 {
 	const char *update_refresh[] = {
-		"update-index", "--refresh", NULL
+		"update-index", "--ignore-submodules", "--refresh", NULL
 	};
 	const char *read_tree[] = {
 		"read-tree", "-u", "-m", sha1_to_hex(sha1), NULL