diff --git a/magnum/drivers/common/templates/kubernetes/fragments/configure-kubernetes-master.sh b/magnum/drivers/common/templates/kubernetes/fragments/configure-kubernetes-master.sh
index 6b21f93083..ffef5fcb68 100644
--- a/magnum/drivers/common/templates/kubernetes/fragments/configure-kubernetes-master.sh
+++ b/magnum/drivers/common/templates/kubernetes/fragments/configure-kubernetes-master.sh
@@ -71,7 +71,6 @@ else
     KUBE_API_ARGS="$KUBE_API_ARGS --authorization-mode=Node,RBAC --tls-cert-file=$CERT_DIR/server.crt"
     KUBE_API_ARGS="$KUBE_API_ARGS --tls-private-key-file=$CERT_DIR/server.key"
     KUBE_API_ARGS="$KUBE_API_ARGS --client-ca-file=$CERT_DIR/ca.crt"
-    KUBE_API_ARGS="$KUBE_API_ARGS --tls-ca-file=${CERT_DIR}/ca.crt"
     KUBE_API_ARGS="$KUBE_API_ARGS --service-account-key-file=${CERT_DIR}/service_account.key"
     KUBE_API_ARGS="$KUBE_API_ARGS --kubelet-certificate-authority=${CERT_DIR}/ca.crt --kubelet-client-certificate=${CERT_DIR}/server.crt --kubelet-client-key=${CERT_DIR}/server.key --kubelet-https=true"
 fi