diff options
| -rw-r--r-- | src/hash.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/hash.c b/src/hash.c index 7d81bc343..f6b61f4e1 100644 --- a/src/hash.c +++ b/src/hash.c @@ -969,6 +969,7 @@ mrb_hash_merge(mrb_state *mrb, mrb_value hash1, mrb_value hash2) h1 = RHASH_TBL(hash1); h2 = RHASH_TBL(hash2); + if (!h2) return; if (!h1) { RHASH_TBL(hash1) = kh_copy(ht, mrb, h2); return; |