diff --git a/jenkins/client/job/image/ubuntu.yml b/jenkins/client/job/image/ubuntu.yml
index 504702c..a9f25e5 100644
--- a/jenkins/client/job/image/ubuntu.yml
+++ b/jenkins/client/job/image/ubuntu.yml
@@ -1,3 +1,5 @@
+classes:
+  - system.jenkins.client.job.image
 parameters:
   _param:
     jenkins_packer_pipeline: "${_param:jenkins_gerrit_url}/mk/packer-templates"