diff --git a/README.textile b/README.textile
index 3503c4ea..ed79e5da 100644
--- a/README.textile
+++ b/README.textile
@@ -156,21 +156,21 @@ Then customize the config/configatron files that were generated to your settings
   configatron.apn.passphrase # => ''
   configatron.apn.port # => 2195
   configatron.apn.host # => 'gateway.sandbox.push.apple.com'
-  configatron.apn.cert #=> File.join(RAILS_ROOT, 'config', 'apple_push_notification_development.pem')
+  configatron.apn.cert #=> File.join(::Rails.root, 'config', 'apple_push_notification_development.pem')
 
   # production (delivery):
   configatron.apn.host # => 'gateway.push.apple.com'
-  configatron.apn.cert #=> File.join(RAILS_ROOT, 'config', 'apple_push_notification_production.pem')
+  configatron.apn.cert #=> File.join(::Rails.root, 'config', 'apple_push_notification_production.pem')
 
   # development (feedback):
   configatron.apn.feedback.passphrase # => ''
   configatron.apn.feedback.port # => 2196
   configatron.apn.feedback.host # => 'feedback.sandbox.push.apple.com'
-  configatron.apn.feedback.cert #=> File.join(RAILS_ROOT, 'config', 'apple_push_notification_development.pem')
+  configatron.apn.feedback.cert #=> File.join(::Rails.root, 'config', 'apple_push_notification_development.pem')
 
   # production (feedback):
   configatron.apn.feedback.host # => 'feedback.push.apple.com'
-  configatron.apn.feedback.cert #=> File.join(RAILS_ROOT, 'config', 'apple_push_notification_production.pem')
+  configatron.apn.feedback.cert #=> File.join(::Rails.root, 'config', 'apple_push_notification_production.pem')
 </pre></code>
 
 That's it, now you're ready to start creating notifications.