diff --git a/youtube/static/js/av-merge.js b/youtube/static/js/av-merge.js
index 3198857..8a1deb8 100644
--- a/youtube/static/js/av-merge.js
+++ b/youtube/static/js/av-merge.js
@@ -164,7 +164,7 @@ function Stream(avMerge, source, startTime, avRatio) {
     });
     this.updateendEvt = addEvent(this.sourceBuffer, 'updateend', (e) => {
         if (this.appendQueue.length != 0) {
-            this.appendSegment(...this.appendQueue.pop());
+            this.appendSegment(...this.appendQueue.shift());
         }
     });
 }