diff --git a/apps/draguboard/lib.js b/apps/draguboard/lib.js
index 4500f523a..6c63668a9 100644
--- a/apps/draguboard/lib.js
+++ b/apps/draguboard/lib.js
@@ -134,7 +134,7 @@ exports.input = function(options) {
     }
   };
 
-  let catchSwipe = (_,__)=>{
+  let catchSwipe = ()=>{
     E.stopEventPropagation&&E.stopEventPropagation();
   };