diff --git a/lib/action_controller/serialization.rb b/lib/action_controller/serialization.rb
index 631c1f40..d8d63a3c 100644
--- a/lib/action_controller/serialization.rb
+++ b/lib/action_controller/serialization.rb
@@ -33,7 +33,7 @@ module ActionController
     end
 
     def serialization_scope
-      send(_serialization_scope) if _serialization_scope && respond_to?(_serialization_scope)
+      send(_serialization_scope) if _serialization_scope && respond_to?(_serialization_scope, true)
     end
 
     def default_serializer_options