diff --git a/maintenance/values/overlays/maintenance/hosts.yaml b/maintenance/values/overlays/maintenance/hosts.yaml
deleted file mode 100644
index 3ab4baf9834ad3cb6035b1512c8660ea52538778..0000000000000000000000000000000000000000
--- a/maintenance/values/overlays/maintenance/hosts.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-ingress:
-  hosts:
-    - host: zam12185.zam.kfa-juelich.de
-      secretName: zam12185
diff --git a/maintenance/values/overlays/production-prep/hosts.yaml b/maintenance/values/overlays/production-prep/hosts.yaml
deleted file mode 100644
index bf6532e4651244b466fd7682035df74c80721a61..0000000000000000000000000000000000000000
--- a/maintenance/values/overlays/production-prep/hosts.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-ingress:
-  hosts:
-    - host: zam12154.zam.kfa-juelich.de
-      secretName: zam12154
diff --git a/maintenance/values/overlays/production/hosts.yaml b/maintenance/values/overlays/production/hosts.yaml
index 7adf0f51b83fe40f0931f89e577bf649b02aa3a0..3bbf42c0ea46c8269bdd26ded20279a767f00fbf 100644
--- a/maintenance/values/overlays/production/hosts.yaml
+++ b/maintenance/values/overlays/production/hosts.yaml
@@ -14,3 +14,5 @@ ingress:
       secretName: portalgauss-tls
     - host: jupyter-coec.jsc.fz-juelich.de
       secretName: coec-tls
+    - host: zam12154.zam.kfa-juelich.de
+      secretName: zam12154-tls