diff --git a/examples/drydock.conf b/examples/drydock.conf
index 48d6cf3d..f22de127 100644
--- a/examples/drydock.conf
+++ b/examples/drydock.conf
@@ -46,3 +46,5 @@ deploy_node = 45
 maas_api_url = 'http://localhost:8000/MAAS/api/2.0/' 
 maas_api_key = 'your:secret:key'
 
+[bootdata]
+prom_init = '/etc/drydock/bootdata/join.sh'