diff --git a/clusters/cl01tl/applications/roundcube/values.yaml b/clusters/cl01tl/applications/roundcube/values.yaml
index 399bebd41..3ca4eb0b1 100644
--- a/clusters/cl01tl/applications/roundcube/values.yaml
+++ b/clusters/cl01tl/applications/roundcube/values.yaml
@@ -198,7 +198,7 @@ roundcube:
       enabled: true
       className: tailscale
       hosts:
-        - host: mail
+        - host: mail-cl01tl
           paths:
             - path: /
               pathType: Prefix