diff --git a/lib/ransack/adapters/mongoid.rb b/lib/ransack/adapters/mongoid.rb
index 836ce9a9d..84e24ba72 100644
--- a/lib/ransack/adapters/mongoid.rb
+++ b/lib/ransack/adapters/mongoid.rb
@@ -11,3 +11,5 @@
 else
   require 'ransack/adapters/mongoid/context'
 end
+
+Ransack::SUPPORTS_ATTRIBUTE_ALIAS = false