diff --git a/__swarm/regsync/regsync-swarm.yml b/__swarm/regsync/regsync-swarm.yml
index 3beb3b8..7cd81af 100644
--- a/__swarm/regsync/regsync-swarm.yml
+++ b/__swarm/regsync/regsync-swarm.yml
@@ -26,7 +26,7 @@ services:
       labels:
         wud.watch: 'true'
         wud.watch.digest: 'true'
-        service_name: regsync
+        service_name: 'regsync'
       replicas: 1
       placement:
         constraints: