diff --git a/argocd/apps/wekan/wekan.yaml b/argocd/apps/wekan/wekan.yaml
index edb5168..e852e2d 100644
--- a/argocd/apps/wekan/wekan.yaml
+++ b/argocd/apps/wekan/wekan.yaml
@@ -40,9 +40,9 @@ spec:
           value: 'https://wekan.innovation-hub-niedersachsen.de'
         - name: port
           value: '80'
-        - name: mail-url
+        - name: mail_url
           value: 'smtp://192.168.4.125:25'
-        - name: mail-from
+        - name: mail_from
           value: 'Wekan Innovation Hub <inno-net@zpd.polizei.niedersachsen.de>'
     chart: wekan
   destination: