diff --git a/cluster/ubuntu/util.sh b/cluster/ubuntu/util.sh
index 562397112e3..773d242e5e5 100755
--- a/cluster/ubuntu/util.sh
+++ b/cluster/ubuntu/util.sh
@@ -224,7 +224,7 @@ function create-etcd-opts() {
   cat <<EOF > ~/kube/default/etcd
 ETCD_OPTS="\
  -name infra\
- -listen-client-urls http://127.0.0.1:4001,http://${1}:4001\
+ --listen-client-urls=http://127.0.0.1:4001,http://${1}:4001\
  -advertise-client-urls http://${1}:4001"
 EOF
 }