diff --git a/_apps/tobru-ch.yaml b/_apps/tobru-ch.yaml
index 41d6e5b..b87add1 100644
--- a/_apps/tobru-ch.yaml
+++ b/_apps/tobru-ch.yaml
@@ -14,6 +14,9 @@ spec:
     path: tobru-ch
     repoURL: https://git.tbrnt.ch/tobru/gitops-tbrnt.git
     targetRevision: HEAD
+  syncPolicy:
+    automated:
+      prune: true
 ---
 apiVersion: v1
 kind: Namespace