diff --git a/HEADER.js b/HEADER.js
index 9053d37ef33..d21a508af9a 100644
--- a/HEADER.js
+++ b/HEADER.js
@@ -29,7 +29,8 @@ else {
  * True when in environment that supports touch events
  * @type boolean
  */
-fabric.isTouchSupported = "ontouchstart" in fabric.document.documentElement;
+
+fabric.isTouchSupported = 'ontouchstart' in fabric.window;
 
 /**
  * True when in environment that's probably Node.js