diff --git a/templates/tacker.conf.j2 b/templates/tacker.conf.j2
index c0dcbc9..0c31207 100644
--- a/templates/tacker.conf.j2
+++ b/templates/tacker.conf.j2
@@ -79,7 +79,7 @@ user_domain_name = {{ tacker_service_user_domain_id }}
 username = {{ tacker_service_user_name }}
 password = {{ tacker_service_password }}
 auth_url = {{ keystone_service_adminuri }}
-auth_uri = {{ keystone_service_internaluri }}
+www_authenticate_uri = {{ keystone_service_internaluri }}
 auth_type = {{ tacker_keystone_auth_plugin }}
 
 [database]