diff --git a/spotify-controller@koolskateguy89/extension.js b/spotify-controller@koolskateguy89/extension.js
index 8bb87ab..de5476d 100644
--- a/spotify-controller@koolskateguy89/extension.js
+++ b/spotify-controller@koolskateguy89/extension.js
@@ -161,12 +161,6 @@ class Toggle extends St.Icon {
 
 const ControlBar = GObject.registerClass(
 class ControlBar extends PanelMenu.Button {
-    previous;
-    next;
-    toggle;
-    buttons;
-    bar;
-
     _init(spotify) {
         super._init();
 
diff --git a/spotify-controller@koolskateguy89/mediaPlayer.js b/spotify-controller@koolskateguy89/mediaPlayer.js
index 8148c99..a2068b1 100644
--- a/spotify-controller@koolskateguy89/mediaPlayer.js
+++ b/spotify-controller@koolskateguy89/mediaPlayer.js
@@ -33,11 +33,12 @@ const PlayerProxy = Gio.DBusProxy.makeProxyWrapper(playerInterface);
  * A non-player specific wrapper of a proxy for a media player.
  * @todo Write the documentation.
  */
-class MediaPlayer {
-    // this.onAppeared = onAppeared;
-    // this.onVanished = onVanished;
-    // this.onPropertiesChanged = onPropertiesChanged;
-
+var MediaPlayer = class MediaPlayer {
+    onAppeared;
+    onVanished;
+    onPropertiesChanged;
+    proxy;
+    proxySignals;
 
     /**
      * @param {playerConsumer=} onAppeared
diff --git a/spotify-controller@koolskateguy89/metadata.json b/spotify-controller@koolskateguy89/metadata.json
index cf78a7b..e0b6893 100644
--- a/spotify-controller@koolskateguy89/metadata.json
+++ b/spotify-controller@koolskateguy89/metadata.json
@@ -11,5 +11,5 @@
   "settings-schema": "org.gnome.shell.extensions.spotify-controller",
   "url": "https://github.com/koolskateguy89/gnome-shell-extension-spotify-controller",
   "uuid": "spotify-controller@koolskateguy89",
-  "version": 13
+  "version": 14
 }