diff --git a/guestbook/guestbook-ui-svc.yaml b/guestbook/guestbook-ui-svc.yaml
index fd9cf73..7fd5059 100644
--- a/guestbook/guestbook-ui-svc.yaml
+++ b/guestbook/guestbook-ui-svc.yaml
@@ -2,7 +2,8 @@ apiVersion: v1
 kind: Service
 metadata:
   name: guestbook-ui
-  argocd.argoproj.io/sync-wave: "1"
+  annotations:
+    argocd.argoproj.io/sync-wave: "1"
 spec:
   ports:
   - port: 80