lib/active_model/attribute_methods.rb in activemodel-3.2.0.rc2 vs lib/active_model/attribute_methods.rb in activemodel-3.2.0

@@ -432,10 +432,10 @@
       end
     end
 
     protected
       def attribute_method?(attr_name)
-        attributes.include?(attr_name)
+        respond_to_without_attributes?(:attributes) && attributes.include?(attr_name)
       end
 
     private
       # Returns a struct representing the matching attribute method.
       # The struct's attributes are prefix, base and suffix.