1 files changed, 2 insertions, 1 deletions
diff --git a/error.c b/error.c
index 3863fb798c..b355cf890c 100644
--- a/error.c
+++ b/error.c
@@ -1589,10 +1589,11 @@ rb_error_frozen(const char *what)
     rb_raise(rb_eRuntimeError, "can't modify frozen %s", what);
 }
 
+#undef rb_check_frozen
 void
 rb_check_frozen(VALUE obj)
 {
-    if (OBJ_FROZEN(obj)) rb_error_frozen(rb_obj_classname(obj));
+    rb_check_frozen_internal(obj);
 }
 
 void