diff --git a/providers/openstack/scs/cluster-class/templates/cluster-class.yaml b/providers/openstack/scs/cluster-class/templates/cluster-class.yaml
index e710a2ea..071935c0 100644
--- a/providers/openstack/scs/cluster-class/templates/cluster-class.yaml
+++ b/providers/openstack/scs/cluster-class/templates/cluster-class.yaml
@@ -811,7 +811,7 @@ cre ate group names like oidc:engineering and oidc:infra."
             matchResources:
               infrastructureCluster: true
           jsonPatches:
-          - op: replace
+          - op: add
             path: "/spec/template/spec/managedSubnets"
             valueFrom:
               template: |
diff --git a/providers/openstack/scs/cluster-class/templates/openstack-cluster-template.yaml b/providers/openstack/scs/cluster-class/templates/openstack-cluster-template.yaml
index cb9b3e60..ce689a2a 100644
--- a/providers/openstack/scs/cluster-class/templates/openstack-cluster-template.yaml
+++ b/providers/openstack/scs/cluster-class/templates/openstack-cluster-template.yaml
@@ -45,9 +45,3 @@ spec:
           portRangeMax: 4244
           protocol: tcp
           description: "Allow Hubble traffic for Cilium"
-      managedSubnets:
-        - cidr: {{ .Values.node_cidr }}
-          dnsNameservers:
-          {{- range .Values.dns_nameservers }}
-            - {{ . }}
-          {{- end }}
diff --git a/providers/openstack/scs/cluster-class/values.yaml b/providers/openstack/scs/cluster-class/values.yaml
index 6e723216..ba9dd876 100644
--- a/providers/openstack/scs/cluster-class/values.yaml
+++ b/providers/openstack/scs/cluster-class/values.yaml
@@ -1,10 +1,6 @@
 # mirrored from variables.tf
-dns_nameservers:
-  - 5.1.66.255
-  - 185.150.99.255
 controller_flavor: SCS-2V-4-20
 worker_flavor: SCS-2V-4-20
-node_cidr: 10.8.0.0/20
 restrict_kubeapi: []
 
 # newly introduced: