1 files changed, 4 insertions, 4 deletions
diff --git a/devtools/client/responsive/test/browser/touch.html b/devtools/client/responsive/test/browser/touch.html
index eed55426bd..c19f26cd8f 100644
--- a/devtools/client/responsive/test/browser/touch.html
+++ b/devtools/client/responsive/test/browser/touch.html
@@ -41,18 +41,18 @@
     }
   }, true);
 
-  div.addEventListener("mouseenter", function (evt) {
+  div.addEventListener("mouseenter", function () {
     div.style.backgroundColor = "red";
   }, true);
-  div.addEventListener("mouseover", function(evt) {
+  div.addEventListener("mouseover", function() {
     div.style.backgroundColor = "red";
   }, true);
 
-  div.addEventListener("mouseout", function (evt) {
+  div.addEventListener("mouseout", function () {
     div.style.backgroundColor = "blue";
   }, true);
 
-  div.addEventListener("mouseleave", function (evt) {
+  div.addEventListener("mouseleave", function () {
     div.style.backgroundColor = "blue";
   }, true);