diff --git a/web/skins/classic/views/js/watch.js b/web/skins/classic/views/js/watch.js
index bbc32e1c7..b419ca872 100644
--- a/web/skins/classic/views/js/watch.js
+++ b/web/skins/classic/views/js/watch.js
@@ -835,7 +835,8 @@ function streamStart(monitor = null) {
 
   monitorStream.setPlayer($j('#player').val());
   monitorStream.setBottomElement(document.getElementById('bottomBlock'));
-  monitorStream.controlMute(getCookie('zmWatchMute') || 'on'); // default to muted
+  const cookieMuted = getCookie('zmWatchMuted');
+  monitorStream.muted = (cookieMuted === null || cookieMuted === 'true') ? true : false; // default to muted
   monitorStream.manageAvailablePlayers();
   setChannelStream();
   // Start the fps and status updates. give a random delay so that we don't assault the server