diff --git a/src/components/syncPlay/ui/playbackPermissionManager.js b/src/components/syncPlay/ui/playbackPermissionManager.js
index 791d6e0702..41c2dc84d3 100644
--- a/src/components/syncPlay/ui/playbackPermissionManager.js
+++ b/src/components/syncPlay/ui/playbackPermissionManager.js
@@ -34,12 +34,12 @@ class PlaybackPermissionManager {
      * Tests playback permission. Grabs the permission when called inside a click event (or any other valid user interaction).
      * @returns {Promise} Promise that resolves succesfully if playback permission is allowed.
      */
-    async check () {
+    check () {
         if (appHost.supports('htmlaudioautoplay')) {
-            return true;
+            return Promise.resolve(true);
         }
 
-        return await new Promise((resolve, reject) => {
+        return new Promise((resolve, reject) => {
             const media = createTestMediaElement();
             media.play().then(() => {
                 resolve();
diff --git a/src/components/upnextdialog/upnextdialog.js b/src/components/upnextdialog/upnextdialog.js
index 7c43584893..2284975f13 100644
--- a/src/components/upnextdialog/upnextdialog.js
+++ b/src/components/upnextdialog/upnextdialog.js
@@ -162,7 +162,7 @@ import '../../assets/css/flexstyles.scss';
         const fn = onHideAnimationComplete.bind(instance);
         instance._onHideAnimationComplete = fn;
 
-        const e = await new Promise((resolve) => {
+        const transitionEvent = await new Promise((resolve) => {
             dom.addEventListener(elem, transitionEndEventName, resolve, {
                 once: true
             });
@@ -173,7 +173,7 @@ import '../../assets/css/flexstyles.scss';
             elem.classList.add('upNextDialog-hidden');
         });
 
-        instance._onHideAnimationComplete(e);
+        instance._onHideAnimationComplete(transitionEvent);
     }
 
     function getTimeRemainingMs(instance) {