diff --git a/keystone/server/single.yml b/keystone/server/single.yml
index ef0a030..26c7d2b 100644
--- a/keystone/server/single.yml
+++ b/keystone/server/single.yml
@@ -37,8 +37,7 @@
         location: /var/lib/keystone/fernet-keys
       message_queue:
         engine: rabbitmq
-        members:
-          - host: ${_param:single_address}
+        host: ${_param:single_address}
         user: openstack
         password: ${_param:rabbitmq_openstack_password}
         virtual_host: '/openstack'