diff --git a/core/modules/views_ui/lib/Drupal/views_ui/Form/Ajax/ReorderDisplays.php b/core/modules/views_ui/lib/Drupal/views_ui/Form/Ajax/ReorderDisplays.php
index 87c637d..98d4555 100644
--- a/core/modules/views_ui/lib/Drupal/views_ui/Form/Ajax/ReorderDisplays.php
+++ b/core/modules/views_ui/lib/Drupal/views_ui/Form/Ajax/ReorderDisplays.php
@@ -67,14 +67,11 @@ public function buildForm(array $form, array &$form_state) {
       '#suffix' => '</div>',
     );
 
-    foreach ($displays as $display) {
-      $id = $display['id'];
-
+    foreach ($displays as $id => $display) {
       $form['displays'][$id] = array(
         '#display' => $display,
         '#attributes' => array(
           'id' => 'display-row-' . $id,
-          'class' => array(),
         ),
         '#weight' => $display['position'],
       );