diff --git a/package.json b/package.json
index 4855b46..22e989e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "MenuTube",
-    "version": "1.7.1",
+    "version": "1.7.2",
     "description": "Catch YouTube into your macOS menu bar!",
     "main": "main.js",
     "scripts": {
diff --git a/src/wvHelper.js b/src/wvHelper.js
index 8ddfa0b..36d7d01 100644
--- a/src/wvHelper.js
+++ b/src/wvHelper.js
@@ -10,12 +10,12 @@ document.addEventListener = () => {
     var config = AppConfig.store.userPreferences;
 
     if (!!config.adBlock) {
-        const _check = v => v !== null && v !== undefined && !isNaN(v);
+        const _check = v => v !== null && v !== undefined;
         setInterval(() => {
             const ad = [...document.querySelectorAll('.ad-showing')][0];
             if (_check(ad)) {
                 const video = document.querySelector('video');
-                if (_check(video) && _check(video.duration)) {
+                if (_check(video) && !isNaN(video.duration)) {
                     video.currentTime = video.duration;
                 }
             }