diff --git a/cmd/kk/pkg/kubernetes/templates/v1beta2/kubeadm_config.go b/cmd/kk/pkg/kubernetes/templates/v1beta2/kubeadm_config.go
index da7b108b..f47efc75 100644
--- a/cmd/kk/pkg/kubernetes/templates/v1beta2/kubeadm_config.go
+++ b/cmd/kk/pkg/kubernetes/templates/v1beta2/kubeadm_config.go
@@ -84,7 +84,7 @@ apiServer:
 {{ toYaml .ApiServerArgs | indent 4}}
   certSANs:
     {{- range .CertSANs }}
-    - {{ . }}
+    - "{{ . }}"
     {{- end }}
 controllerManager:
   extraArgs: