diff --git a/src/input/pointerevent.js b/src/input/pointerevent.js
index df60cb130..ec810b5fb 100644
--- a/src/input/pointerevent.js
+++ b/src/input/pointerevent.js
@@ -18,7 +18,7 @@ var POINTER_ELEMENT_EVENTS = 'pointerdown';
 var POINTER_WINDOW_EVENTS = 'pointermove pointerup pointercancel';
 
 // IE10 has prefixed support, and case-sensitive
-if (window.MSPointerEvent) {
+if (window.MSPointerEvent && !window.PointerEvent) {
     POINTER_ELEMENT_EVENTS = 'MSPointerDown';
     POINTER_WINDOW_EVENTS = 'MSPointerMove MSPointerUp MSPointerCancel';
 }