diff --git a/devstack/lib/zun b/devstack/lib/zun
index dc7f7f0a1..a90668c7f 100644
--- a/devstack/lib/zun
+++ b/devstack/lib/zun
@@ -193,6 +193,7 @@ function create_zun_conf {
     iniset $ZUN_CONF etcd etcd_port "$ZUN_ETCD_PORT"
     iniset $ZUN_CONF websocket_proxy wsproxy_port "$ZUN_WEBSOCKET_PROXY_PORT"
     iniset $ZUN_CONF websocket_proxy wsproxy_host "$ZUN_WEBSOCKET_PROXY_IP"
+    iniset $ZUN_CONF websocket_proxy base_url "ws://${SERVICE_HOST}:${ZUN_WEBSOCKET_PROXY_PORT}/"
     iniset $ZUN_CONF api host_ip "$ZUN_SERVICE_HOST"
     iniset $ZUN_CONF api port "$ZUN_SERVICE_PORT"
     iniset $ZUN_CONF docker docker_remote_api_host "$HOST_IP"