diff --git a/nova/control/cluster.yml b/nova/control/cluster.yml
index 08bbf07..6591552 100644
--- a/nova/control/cluster.yml
+++ b/nova/control/cluster.yml
@@ -1,6 +1,7 @@
 classes:
 - service.haproxy.proxy.single
 - service.nova.control.cluster
+- system.nova.upgrade
 - service.keepalived.cluster.single
 - system.haproxy.proxy.listen.openstack.nova
 - system.haproxy.proxy.listen.openstack.novnc