diff --git a/lib/ransack/adapters/mongoid/ransack/translate.rb b/lib/ransack/adapters/mongoid/ransack/translate.rb
index a6c2730..f321927 100644
--- a/lib/ransack/adapters/mongoid/ransack/translate.rb
+++ b/lib/ransack/adapters/mongoid/ransack/translate.rb
@@ -2,11 +2,12 @@ module Ransack
   module Translate
 
     def self.i18n_key(klass)
-      if ActiveRecord::VERSION::MAJOR == 3 && ActiveRecord::VERSION::MINOR == 0
-        klass.model_name.i18n_key.to_s.tr('.', '/')
-      else
-        klass.model_name.i18n_key.to_s
-      end
+      # if ActiveRecord::VERSION::MAJOR == 3 && ActiveRecord::VERSION::MINOR == 0
+      #   klass.model_name.i18n_key.to_s.tr('.', '/')
+      # else
+      #   klass.model_name.i18n_key.to_s
+      # end
+      klass.model_name.i18n_key.to_s
     end
   end
 end
diff --git a/spec/mongoid/translate_spec.rb b/spec/mongoid/translate_spec.rb
new file mode 100644
index 0000000..2ebfdf4
--- /dev/null
+++ b/spec/mongoid/translate_spec.rb
@@ -0,0 +1,14 @@
+require 'mongoid_spec_helper'
+
+module Ransack
+  describe Translate do
+
+    describe '.attribute' do
+      it 'translate namespaced attribute like AR does' do
+        ar_translation = ::Namespace::Article.human_attribute_name(:title)
+        ransack_translation = Ransack::Translate.attribute(:title, :context => ::Namespace::Article.search.context)
+        expect(ransack_translation).to eq ar_translation
+      end
+    end
+  end
+end