diff --git a/argocd/apps/cert-manager/include/s3-cerficate.yaml b/argocd/apps/cert-manager/include/s3-cerficate.yaml
index 27aae86..9625985 100644
--- a/argocd/apps/cert-manager/include/s3-cerficate.yaml
+++ b/argocd/apps/cert-manager/include/s3-cerficate.yaml
@@ -7,7 +7,7 @@ spec:
   secretName: s3-tls
   commonName: 's3.innovation-hub-niedersachsen.de'
   dnsNames:
-    - 's3.innovation-hub-niedersachsen.de'
+    - s3.innovation-hub-niedersachsen.de
   issuerRef:
     name: lets-encrypt
     kind: ClusterIssuer