diff --git a/manifests/auth_file.pp b/manifests/auth_file.pp
index f35ef8c..7a7a049 100644
--- a/manifests/auth_file.pp
+++ b/manifests/auth_file.pp
@@ -5,8 +5,7 @@
 #
 class openstack::auth_file(
   $admin_password,
-  $public_address,
-  $controller_node      = '127.0.0.1',
+  $public_address       = '127.0.0.1',
   $keystone_admin_token = 'keystone_admin_token',
   $admin_user           = 'admin',
   $admin_tenant         = 'admin'