diff --git a/install_config/install/advanced_install.adoc b/install_config/install/advanced_install.adoc
index 97fc64d7222c..52d102bb9b97 100644
--- a/install_config/install/advanced_install.adoc
+++ b/install_config/install/advanced_install.adoc
@@ -679,7 +679,7 @@ from the default `registry.access.redhat.com/openshift3/`. To do so, set the
 following cluster variable in your inventory file in the `[OSEv3:vars]` section:
 
 ----
-openshift_docker_systemcontainer_image_registry_override="registry.example.com/myrepo/"
+openshift_docker_systemcontainer_image_override="<registry>/<user>/<image>:<tag>"
 ----
 
 [[advanced-install-etcd-system-container]]