diff --git a/lib/factory_girl/attribute_assigner.rb b/lib/factory_girl/attribute_assigner.rb
index 946d59a02..b93b51094 100644
--- a/lib/factory_girl/attribute_assigner.rb
+++ b/lib/factory_girl/attribute_assigner.rb
@@ -1,5 +1,3 @@
-require "active_support/basic_object"
-
 module FactoryGirl
   class AttributeAssigner
     def initialize(build_class, evaluator)