diff --git a/lib/tolk/engine.rb b/lib/tolk/engine.rb
index e90c359..ff10c15 100644
--- a/lib/tolk/engine.rb
+++ b/lib/tolk/engine.rb
@@ -1,7 +1,6 @@
-require 'rails'
-
 module Tolk
   class Engine < Rails::Engine
     engine_name :tolk
+    isolate_namespace(Tolk)
   end
 end