diff --git a/src/components/nowplayingbar/nowplayingbar.js b/src/components/nowplayingbar/nowplayingbar.js
index 87cc83e388..c15866d629 100644
--- a/src/components/nowplayingbar/nowplayingbar.js
+++ b/src/components/nowplayingbar/nowplayingbar.js
@@ -402,7 +402,7 @@ define(['require', 'datetime', 'itemHelper', 'events', 'browser', 'imageLoader',
         if (isMuted) {
             muteButton.querySelector('i').innerHTML = '';
         } else {
-            muteButton.querySelector('i').innerHTML = 'volume_up';
+            muteButton.querySelector('i').innerHTML = '';
         }
 
         if (progressElement) {
diff --git a/src/components/playback/brightnessosd.js b/src/components/playback/brightnessosd.js
index f50e281c99..47551e8de6 100644
--- a/src/components/playback/brightnessosd.js
+++ b/src/components/playback/brightnessosd.js
@@ -102,11 +102,11 @@ define(['events', 'playbackManager', 'dom', 'browser', 'css!./iconosd', 'materia
 
         if (iconElement) {
             if (brightness >= 80) {
-                iconElement.innerHTML = 'brightness_high';
+                iconElement.innerHTML = '';
             } else if (brightness >= 20) {
-                iconElement.innerHTML = 'brightness_medium';
+                iconElement.innerHTML = '';
             } else {
-                iconElement.innerHTML = 'brightness_low';
+                iconElement.innerHTML = '';
             }
         }
         if (progressElement) {