diff --git a/ceilometer/agent/single.yml b/ceilometer/agent/single.yml
index ada8cd5..037bb4e 100644
--- a/ceilometer/agent/single.yml
+++ b/ceilometer/agent/single.yml
@@ -1,5 +1,6 @@
 classes:
 - service.ceilometer.agent.single
+- system.ceilometer.upgrade
 - system.salt.minion.cert.rabbitmq.clients.openstack.ceilometer
 parameters:
   ceilometer: