diff --git a/nixos/kubeadm/modules/k8s-common.nix b/nixos/kubeadm/modules/k8s-common.nix
index 589efae..a6e792d 100644
--- a/nixos/kubeadm/modules/k8s-common.nix
+++ b/nixos/kubeadm/modules/k8s-common.nix
@@ -165,7 +165,8 @@ in
         name: "KUBEADM_NODE_NAME"
         criSocket: unix:///run/containerd/containerd.sock
         kubeletExtraArgs:
-          hostname-override: "KUBEADM_NODE_NAME"
+          - name: hostname-override
+            value: "KUBEADM_NODE_NAME"
       ---
       apiVersion: kubeadm.k8s.io/v1beta4
       kind: ClusterConfiguration