diff --git a/argocd/apps/cert-manager/include/plane-cerficate.yaml b/argocd/apps/cert-manager/include/plane-cerficate.yaml
index 02aefe2..019df1b 100644
--- a/argocd/apps/cert-manager/include/plane-cerficate.yaml
+++ b/argocd/apps/cert-manager/include/plane-cerficate.yaml
@@ -2,7 +2,7 @@ apiVersion: cert-manager.io/v1
 kind: Certificate
 metadata:
   name: innovation-hub-niedersachsen.de-plane
-  namespace: plane
+  namespace: kube-system
 spec:
   secretName: plane-tls
   commonName: 'plane.innovation-hub-niedersachsen.de'