diff --git a/cluster/juju/layers/kubernetes-worker/reactive/kubernetes_worker.py b/cluster/juju/layers/kubernetes-worker/reactive/kubernetes_worker.py
index e8032197d34..215fa7a3fea 100644
--- a/cluster/juju/layers/kubernetes-worker/reactive/kubernetes_worker.py
+++ b/cluster/juju/layers/kubernetes-worker/reactive/kubernetes_worker.py
@@ -361,7 +361,7 @@ def send_data(tls, kube_control):
     sans = [
         hookenv.unit_public_ip(),
         ingress_ip,
-        get_node_name()
+        gethostname()
     ]
 
     # Create a path safe name by removing path characters from the unit name.