diff --git a/core/modules/media_library/src/Plugin/Field/FieldWidget/MediaLibraryWidget.php b/core/modules/media_library/src/Plugin/Field/FieldWidget/MediaLibraryWidget.php
index a1141ff9b5..0074e9e48f 100644
--- a/core/modules/media_library/src/Plugin/Field/FieldWidget/MediaLibraryWidget.php
+++ b/core/modules/media_library/src/Plugin/Field/FieldWidget/MediaLibraryWidget.php
@@ -3,6 +3,7 @@
 namespace Drupal\media_library\Plugin\Field\FieldWidget;
 
 use Drupal\Component\Render\FormattableMarkup;
+use Drupal\Component\Utility\Html;
 use Drupal\Component\Utility\NestedArray;
 use Drupal\Component\Utility\SortArray;
 use Drupal\Core\Ajax\AjaxResponse;
@@ -314,7 +315,7 @@ public function formElement(FieldItemListInterface $items, $delta, array $elemen
     $field_name = $this->fieldDefinition->getName();
     $parents = $form['#parents'];
     // Create an ID suffix from the parents to make sure each widget is unique.
-    $id_suffix = $parents ? '-' . implode('-', $parents) : '';
+    $id_suffix = $parents ? '-' . implode('-', $parents) : $this->fieldDefinition->getUniqueIdentifier();
     $field_widget_id = implode(':', array_filter([$field_name, $id_suffix]));
     $wrapper_id = $field_name . '-media-library-wrapper' . $id_suffix;
     $limit_validation_errors = [array_merge($parents, [$field_name])];