diff --git a/lib/zin/wg/productsbox/js/v1.js b/lib/zin/wg/productsbox/js/v1.js
index 95eb9b98cb..c292575a10 100644
--- a/lib/zin/wg/productsbox/js/v1.js
+++ b/lib/zin/wg/productsbox/js/v1.js
@@ -136,7 +136,7 @@ window.loadPlans = function(product, branch)
 
 window.toggleNewProduct = function(e)
 {
-    if($(e.target).prop('checked'))
+    if($(event.target).prop('checked'))
     {
         $('.productBox').addClass('hidden');
         $('.addProductBox').removeClass('hidden');
diff --git a/lib/zin/wg/productsbox/v1.php b/lib/zin/wg/productsbox/v1.php
index 79a919d571..be41c669b6 100644
--- a/lib/zin/wg/productsbox/v1.php
+++ b/lib/zin/wg/productsbox/v1.php
@@ -82,7 +82,7 @@ class productsBox extends wg
             setClass('addProductBox flex hidden'),
             formGroup
             (
-                on::change('[name=newProduct]', 'toggleNewProduct'),
+                on::change()->call('toggleNewProduct'),
                 set::width('1/2'),
                 set::checkbox(array('text' => $lang->project->addProduct, 'name' => 'newProduct', 'checked' => false)),
                 set::required(true),
@@ -95,7 +95,7 @@ class productsBox extends wg
             set::className("productBox flex items-center $hidden"),
             formGroup
             (
-                on::change('[name=addProduct]', 'toggleNewProduct'),
+                on::change()->call('toggleNewProduct'),
                 set::width('1/2'),
                 setClass('linkProduct'),
                 set::required($this->prop('required') || ($project && in_array($project->model, array('waterfall', 'waterfallplus')))),