diff --git a/lib/ransack/nodes/attribute.rb b/lib/ransack/nodes/attribute.rb
index 73b57f2a..0607d86a 100644
--- a/lib/ransack/nodes/attribute.rb
+++ b/lib/ransack/nodes/attribute.rb
@@ -20,8 +20,7 @@ def name=(name)
 
       def valid?
         bound? && attr &&
-        context.klassify(parent).ransackable_attributes(context.auth_object)
-        .include?(attr_name.split('.').last)
+        context.ransackable_attribute?(attr_name.split('.').last, context.klassify(parent))
       end
 
       def associated_collection?