diff --git a/core/modules/views_ui/lib/Drupal/views_ui/Form/Ajax/Display.php b/core/modules/views_ui/lib/Drupal/views_ui/Form/Ajax/Display.php
index 619d6a59b29..c2dbad62b33 100644
--- a/core/modules/views_ui/lib/Drupal/views_ui/Form/Ajax/Display.php
+++ b/core/modules/views_ui/lib/Drupal/views_ui/Form/Ajax/Display.php
@@ -61,7 +61,6 @@ class Display extends ViewsFormBase {
   public function buildForm(array $form, array &$form_state) {
     $view = $form_state['view'];
     $display_id = $form_state['display_id'];
-    $section = $form_state['section'];
 
     $executable = $view->getExecutable();
     $executable->setDisplay($display_id);