diff --git a/lib/v2/local.js b/lib/v2/local.js
index 0ad6c77..bbd398a 100644
--- a/lib/v2/local.js
+++ b/lib/v2/local.js
@@ -66,7 +66,7 @@ var dorita980 = function localV2 (user, password, host, emitIntervalTime) {
         cmd = {'state': command};
       }
       if (additionalArgs) {
-        cmd = {...additionalArgs, cmd};
+        cmd = Object.assign(cmd, additionalArgs);
       }
       client.publish(topic, JSON.stringify(cmd), function (e) {
         if (e) return reject(e);