diff --git a/lib/config.rb b/lib/config.rb
index c10b34d9..4713f8ba 100644
--- a/lib/config.rb
+++ b/lib/config.rb
@@ -79,7 +79,7 @@ def self.reload!
 end
 
 # Rails integration
-require('config/integrations/rails/railtie') if defined?(::Rails)
+require('config/integrations/rails/railtie') if defined?(::Rails::Railtie)
 
 # Sinatra integration
 require('config/integrations/sinatra') if defined?(::Sinatra)