diff --git a/cluster/ubuntu/util.sh b/cluster/ubuntu/util.sh
index 1145a02bb93..5cf65c68898 100755
--- a/cluster/ubuntu/util.sh
+++ b/cluster/ubuntu/util.sh
@@ -369,7 +369,6 @@ function provision-master() {
   # remote login to MASTER and use sudo to configue k8s master
   ssh $SSH_OPTS -t $MASTER "source ~/kube/util.sh; \
                             groupadd -f -r kube-cert; \
-                            ~/kube/make-ca-cert ${MASTER_IP} IP:${MASTER_IP},IP:${SERVICE_CLUSTER_IP_RANGE%.*}.1,DNS:kubernetes,DNS:kubernetes.default,DNS:kubernetes.default.svc,DNS:kubernetes.default.svc.cluster.local; \
                             setClusterInfo; \
                             create-etcd-opts "${mm[${MASTER_IP}]}" "${MASTER_IP}" "${CLUSTER}"; \
                             create-kube-apiserver-opts "${SERVICE_CLUSTER_IP_RANGE}" "${ADMISSION_CONTROL}" "${SERVICE_NODE_PORT_RANGE}"; \