1 files changed, 2 insertions, 2 deletions
diff --git a/src/gc.c b/src/gc.c
index 69121d630..c52641959 100644
--- a/src/gc.c
+++ b/src/gc.c
@@ -622,7 +622,7 @@ gc_mark_children(mrb_state *mrb, mrb_gc *gc, struct RBasic *obj)
   case MRB_TT_ICLASS:
     {
       struct RClass *c = (struct RClass*)obj;
-      if (MRB_FLAG_TEST(c, MRB_FLAG_IS_ORIGIN))
+      if (MRB_FLAG_TEST(c, MRB_FL_CLASS_IS_ORIGIN))
         mrb_gc_mark_mt(mrb, c);
       mrb_gc_mark(mrb, (struct RBasic*)((struct RClass*)obj)->super);
     }
@@ -761,7 +761,7 @@ obj_free(mrb_state *mrb, struct RBasic *obj, int end)
     mrb_gc_free_iv(mrb, (struct RObject*)obj);
     break;
   case MRB_TT_ICLASS:
-    if (MRB_FLAG_TEST(obj, MRB_FLAG_IS_ORIGIN))
+    if (MRB_FLAG_TEST(obj, MRB_FL_CLASS_IS_ORIGIN))
       mrb_gc_free_mt(mrb, (struct RClass*)obj);
     break;
   case MRB_TT_ENV: