diff --git a/k8s/master/kustomization.yaml b/k8s/master/kustomization.yaml
index 73457a4d..42cfa97f 100644
--- a/k8s/master/kustomization.yaml
+++ b/k8s/master/kustomization.yaml
@@ -48,6 +48,7 @@ patchesStrategicMerge:
         listen       80;
         listen  [::]:80;
         server_name  _;
+        resolver rke2-coredns-rke2-coredns.kube-system.svc.cluster.local;
         location / {
             proxy_pass http://coal-ui.coal-master.svc.cluster.local/;
             proxy_set_header    X-Real-IP        $remote_addr;