diff --git a/gamuSwipe.js b/gamuSwipe.js
index 14474e1..6471e27 100644
--- a/gamuSwipe.js
+++ b/gamuSwipe.js
@@ -1,7 +1,10 @@
 /*
- * gamuSwipe v1.0.0 2019-01-31
+ * gamuSwipe v1.0.1 2019-04-04
  * https://git.gamuza.fr/scripts/gamuswipe
  *
+ * arg passive : true
+ * https://github.com/WICG/EventListenerOptions/blob/gh-pages/explainer.md
+ * https://developer.mozilla.org/fr/docs/Web/API/EventTarget/addEventListener
  */
 function gamuSwipe(mon_id,handleswipe){
 	window.addEventListener('load', function(){
@@ -14,7 +17,7 @@ function gamuSwipe(mon_id,handleswipe){
 			var touchobj = e.changedTouches[0];
 			dist = 0;
 			startX = touchobj.pageX;
-		}, false);
+		}, {passive: true});
 
 		//touchsurface.addEventListener('touchmove', function(e){
 		//}, false);