diff --git a/argocd/apps/wordpress/wordpress.yaml b/argocd/apps/wordpress/wordpress.yaml
index c978b57..5fb5175 100644
--- a/argocd/apps/wordpress/wordpress.yaml
+++ b/argocd/apps/wordpress/wordpress.yaml
@@ -14,7 +14,7 @@ spec:
       parameters:
         - name: ingress.enabled
           value: 'true'
-        - name: ingress.annotations.kubernetes\.io\/ingress\.class
+        - name: ingress.annotations."kubernetes\.io\/ingress\.class"
           value: 'traefik'
         - name: ingress.hostname
           value: 'www.innovation-hub-niedersachsen.de'