diff --git a/lib/vtt.js b/lib/vtt.js
index 66ab23f..b91fbf3 100644
--- a/lib/vtt.js
+++ b/lib/vtt.js
@@ -375,7 +375,6 @@
         return null;
       }
       var element = window.document.createElement(tagName);
-      element.localName = tagName;
       var name = TAG_ANNOTATION[type];
       if (name && annotation) {
         element[name] = annotation.trim();