1 files changed, 2 insertions, 0 deletions
diff --git a/refs.c b/refs.c
index 0a916a0c2a..f672ad93a6 100644
--- a/refs.c
+++ b/refs.c
@@ -1202,6 +1202,8 @@ int peel_ref(const char *refname, unsigned char *sha1)
 	if (current_ref && (current_ref->name == refname
 		|| !strcmp(current_ref->name, refname))) {
 		if (current_ref->flag & REF_KNOWS_PEELED) {
+			if (is_null_sha1(current_ref->u.value.peeled))
+			    return -1;
 			hashcpy(sha1, current_ref->u.value.peeled);
 			return 0;
 		}