diff --git a/guestbook/guestbook-ui-deployment.yaml b/guestbook/guestbook-ui-deployment.yaml
index 929de14..08809ea 100644
--- a/guestbook/guestbook-ui-deployment.yaml
+++ b/guestbook/guestbook-ui-deployment.yaml
@@ -3,7 +3,7 @@ kind: Deployment
 metadata:
   name: guestbook-ui
   annotations:
-    argocd.argoproj.io/sync-wave: "56s"
+    argocd.argoproj.io/sync-wave: "56"
 spec:
   replicas: 1
   revisionHistoryLimit: 3