diff --git a/keystoneclient/middleware/auth_token.py b/keystoneclient/middleware/auth_token.py
index b3b6c9457..dae51cb94 100644
--- a/keystoneclient/middleware/auth_token.py
+++ b/keystoneclient/middleware/auth_token.py
@@ -26,7 +26,8 @@ This WSGI component:
 * Collects and forwards identity information based on a valid token
   such as user name, tenant, etc
 
-Refer to: http://keystone.openstack.org/middlewarearchitecture.html
+Refer to: http://docs.openstack.org/developer/python-keystoneclient/
+middlewarearchitecture.html
 
 HEADERS
 -------