diff --git a/nova/compute_ironic/single.yml b/nova/compute_ironic/single.yml
index cddaa4d..fe5db6c 100644
--- a/nova/compute_ironic/single.yml
+++ b/nova/compute_ironic/single.yml
@@ -1,5 +1,6 @@
 classes:
 - service.nova.compute.ironic
+- system.nova.upgrade
 parameters:
   nova:
     compute: