diff --git a/core/lib/Drupal/Core/Config/Entity/DraggableListBuilder.php b/core/lib/Drupal/Core/Config/Entity/DraggableListBuilder.php
index e1eb60e..cbb3f10 100644
--- a/core/lib/Drupal/Core/Config/Entity/DraggableListBuilder.php
+++ b/core/lib/Drupal/Core/Config/Entity/DraggableListBuilder.php
@@ -129,7 +129,7 @@ public function buildForm(array $form, FormStateInterface $form_state) {
     foreach ($this->entities as $entity) {
       $row = $this->buildRow($entity);
       if (isset($row['label'])) {
-        $row['label'] = array('#markup' => $row['label']);
+        $row['label'] = array('#plain_text' => $row['label']);
       }
       if (isset($row['weight'])) {
         $row['weight']['#delta'] = $delta;