diff --git a/templates/web/prod/actions/Feedback/list.html.twig b/templates/web/prod/actions/Feedback/list.html.twig
index 544bc6b483..781d14f593 100644
--- a/templates/web/prod/actions/Feedback/list.html.twig
+++ b/templates/web/prod/actions/Feedback/list.html.twig
@@ -25,9 +25,8 @@
                 </td>
                 {% if list.getOwner(app['authentication'].getUser(), app).getRole() >= constant('\\Entities\\UsrListOwner::ROLE_ADMIN') %}
                     <td style="text-align:right;white-space:nowrap;width:150px;">
-                        <button class="deleter btn btn-inverse">
+                        <button class="deleter btn btn-inverse" data-list-id="{{ list.getId() }}">
                             {% trans 'Delete' %}
-                            <input type="hidden" name="list_id" value="{{ list.getId() }}"/>
                         </button>
                     </td>
                 {% endif %}
diff --git a/www/skins/prod/jquery.Feedback.js b/www/skins/prod/jquery.Feedback.js
index 96a142fc18..055a27ea8c 100644
--- a/www/skins/prod/jquery.Feedback.js
+++ b/www/skins/prod/jquery.Feedback.js
@@ -514,7 +514,7 @@
                     var options = {
                         cancelButton: true,
                         buttons: buttons,
-                        size: 'Alert'
+                        size: '700x170'
                     };
 
                     p4.Dialog.Create(options, 2).setContent(box);
@@ -626,7 +626,7 @@
 
             $('button.deleter', $container).bind('click', function (event) {
 
-                var list_id = $(this).find('input[name=list_id]').val();
+                var list_id = $(this).data("list-id");
 
                 var makeDialog = function (box) {