diff --git a/terraform/modules/k8s-cluster/manager-node.tf b/terraform/modules/k8s-cluster/manager-node.tf
index 9f0123a..ad3a3ca 100644
--- a/terraform/modules/k8s-cluster/manager-node.tf
+++ b/terraform/modules/k8s-cluster/manager-node.tf
@@ -77,7 +77,8 @@ resource "hcloud_server" "manager" {
 
   labels = {
     "kubernetes" : "yes",
-    "manager" : "yes"
+    "manager" : "yes",
+    "kubernetes.io/cluster/${var.cluster_name}" : "owned"
   }
 
   user_data = templatefile("${path.module}/templates/cloud-init-k8s-manager.tftpl", {
diff --git a/terraform/modules/k8s-cluster/worker-node.tf b/terraform/modules/k8s-cluster/worker-node.tf
index 6a44929..f651a0e 100644
--- a/terraform/modules/k8s-cluster/worker-node.tf
+++ b/terraform/modules/k8s-cluster/worker-node.tf
@@ -56,7 +56,8 @@ resource "hcloud_server" "worker" {
 
   labels = {
     "kubernetes" : "yes",
-    "worker" : "yes"
+    "worker" : "yes",
+    "kubernetes.io/cluster/${var.cluster_name}" : "owned"
   }
 
   user_data = templatefile("${path.module}/templates/cloud-init-k8s-worker.tftpl", {