diff --git a/js/mediaSession.js b/js/mediaSession.js
index d187ba10..05105568 100644
--- a/js/mediaSession.js
+++ b/js/mediaSession.js
@@ -1,7 +1,7 @@
 export default function enableMediaSession(webamp) {
   if ("mediaSession" in navigator) {
     /* global MediaMetadata */
-    webamp.__onTrackDidChange(({ title, artist, album, albumArtUrl }) => {
+    webamp.onTrackDidChange(({ title, artist, album, albumArtUrl }) => {
       navigator.mediaSession.metadata = new MediaMetadata({
         title,
         artist,
diff --git a/js/webampLazy.js b/js/webampLazy.js
index 9f2483fa..7f9ce92d 100644
--- a/js/webampLazy.js
+++ b/js/webampLazy.js
@@ -222,7 +222,7 @@ class Winamp {
     return this._actionEmitter.on(CLOSE_WINAMP, cb);
   }
 
-  __onTrackDidChange(cb) {
+  onTrackDidChange(cb) {
     let previousTrackId = null;
     this.store.subscribe(() => {
       const state = this.store.getState();