diff --git a/activerecord/test/cases/attribute_methods_test.rb b/activerecord/test/cases/attribute_methods_test.rb
index b0896fb236e540bc704feaa247fab78f991c4549..dbf5a1ba76e5e930037bf1285067bef99e759f31 100644
--- a/activerecord/test/cases/attribute_methods_test.rb
+++ b/activerecord/test/cases/attribute_methods_test.rb
@@ -113,6 +113,7 @@ def test_respond_to_with_allocated_object
   # by inspecting it.
   def test_allocated_object_can_be_inspected
     topic = Topic.allocate
+    topic.instance_eval { @attributes = nil }
     assert_nothing_raised { topic.inspect }
     assert topic.inspect, "#<Topic not initialized>"
   end