1 files changed, 1 insertions, 1 deletions
diff --git a/hash.c b/hash.c
index 314ac18c5c..09298421e1 100644
--- a/hash.c
+++ b/hash.c
@@ -132,7 +132,7 @@ rb_hash(VALUE obj)
     }
 
     while (!FIXNUM_P(hval)) {
-        if (RB_TYPE_P(hval, T_BIGNUM)) {
+        if (RB_BIGNUM_TYPE_P(hval)) {
             int sign;
             unsigned long ul;
             sign = rb_integer_pack(hval, &ul, 1, sizeof(ul), 0,