diff --git a/src/configurations/quickjs/async-mqtt.js b/src/configurations/quickjs/async-mqtt.js
index c2b3251121f2bb9c654382ddd5b50932a846e473..baf3bcdadd2f2542c9409368c7a4839bec42f80a 100644
--- a/src/configurations/quickjs/async-mqtt.js
+++ b/src/configurations/quickjs/async-mqtt.js
@@ -30,9 +30,9 @@ class AsyncClient {
     port = 9001,
     user = "admin",
     password = "admin",
-    clientId
+    clientId = "qjs_client"
   ) {
-    this.client = new Paho.Client(host, port, "/mqtt", finalClientId);
+    this.client = new Paho.Client(host, port, "/mqtt", clientId);
     const opts = {
       userName: user,
       password: password,