diff --git a/src/html-parser.js b/src/html-parser.js
index 2fa78e2f..de01586e 100644
--- a/src/html-parser.js
+++ b/src/html-parser.js
@@ -60,7 +60,7 @@ function shouldUseActiveX () {
   try {
     document.implementation.createHTMLDocument('').open()
   } catch (e) {
-    if (window.ActiveXObject) useActiveX = true
+    if (root.ActiveXObject) useActiveX = true
   }
   return useActiveX
 }