diff --git a/bigbluebutton-html5/imports/ui/services/audio-manager/index.js b/bigbluebutton-html5/imports/ui/services/audio-manager/index.js
index 588172c3a9eeb3fe557a5ece15e6dfa313eac197..aba73689842e76d805122e9d5f26d55554cc4858 100755
--- a/bigbluebutton-html5/imports/ui/services/audio-manager/index.js
+++ b/bigbluebutton-html5/imports/ui/services/audio-manager/index.js
@@ -661,7 +661,7 @@ class AudioManager {
   }
 
   playAlertSound(url) {
-    if (!url) {
+    if (!url || !this.bridge) {
       return Promise.resolve();
     }