1 files changed, 1 insertions, 1 deletions
diff --git a/class.c b/class.c
index 80f57a1622..054be60d53 100644
--- a/class.c
+++ b/class.c
@@ -153,7 +153,7 @@ rb_singleton_class_clone(obj)
 		data.klass = obj;
 		break;
 	      default:
-		data.klass = 0;
+		data.klass = Qnil;
 		break;
 	    }