1 files changed, 1 insertions, 0 deletions
diff --git a/hash.c b/hash.c
index b945042983..4afba8b624 100644
--- a/hash.c
+++ b/hash.c
@@ -474,6 +474,7 @@ rb_hash_default(int argc, VALUE *argv, VALUE hash)
 
     rb_scan_args(argc, argv, "01", &key);
     if (FL_TEST(hash, HASH_PROC_DEFAULT)) {
+	if (argc == 0) return Qnil;
 	return rb_funcall(RHASH(hash)->ifnone, id_yield, 2, hash, key);
     }
     return RHASH(hash)->ifnone;