diff --git a/core/modules/config/src/Form/ConfigSync.php b/core/modules/config/src/Form/ConfigSync.php
index b97218b..3ff2f00 100644
--- a/core/modules/config/src/Form/ConfigSync.php
+++ b/core/modules/config/src/Form/ConfigSync.php
@@ -7,11 +7,9 @@
 
 namespace Drupal\config\Form;
 
-use Drupal\Component\Uuid\UuidInterface;
 use Drupal\Core\Config\ConfigImporterException;
 use Drupal\Core\Config\ConfigImporter;
 use Drupal\Core\Config\TypedConfigManagerInterface;
-use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Extension\ModuleInstallerInterface;
 use Drupal\Core\Extension\ThemeHandlerInterface;
@@ -21,6 +19,7 @@
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Lock\LockBackendInterface;
 use Drupal\Core\Config\StorageComparer;
+use Drupal\Core\Render\RendererInterface;
 use Drupal\Core\Url;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
@@ -101,6 +100,13 @@ class ConfigSync extends FormBase {
   protected $moduleInstaller;
 
   /**
+   * The rendering service.
+   *
+   * @var \Drupal\Core\Render\RendererInterface
+   */
+  protected $renderer;
+
+  /**
    * Constructs the object.
    *
    * @param \Drupal\Core\Config\StorageInterface $staging_storage
@@ -123,8 +129,10 @@ class ConfigSync extends FormBase {
    *   The module installer.
    * @param \Drupal\Core\Extension\ThemeHandlerInterface $theme_handler
    *   The theme handler
+   * @param \Drupal\Core\Render\RendererInterface $render
+   *   The rendering service.
    */
-  public function __construct(StorageInterface $staging_storage, StorageInterface $active_storage, StorageInterface $snapshot_storage, LockBackendInterface $lock, EventDispatcherInterface $event_dispatcher, ConfigManagerInterface $config_manager, TypedConfigManagerInterface $typed_config, ModuleHandlerInterface $module_handler, ModuleInstallerInterface $module_installer, ThemeHandlerInterface $theme_handler) {
+  public function __construct(StorageInterface $staging_storage, StorageInterface $active_storage, StorageInterface $snapshot_storage, LockBackendInterface $lock, EventDispatcherInterface $event_dispatcher, ConfigManagerInterface $config_manager, TypedConfigManagerInterface $typed_config, ModuleHandlerInterface $module_handler, ModuleInstallerInterface $module_installer, ThemeHandlerInterface $theme_handler, RendererInterface $renderer) {
     $this->stagingStorage = $staging_storage;
     $this->activeStorage = $active_storage;
     $this->snapshotStorage = $snapshot_storage;
@@ -135,6 +143,7 @@ public function __construct(StorageInterface $staging_storage, StorageInterface
     $this->moduleHandler = $module_handler;
     $this->moduleInstaller = $module_installer;
     $this->themeHandler = $theme_handler;
+    $this->renderer = $renderer;
   }
 
   /**
@@ -151,7 +160,8 @@ public static function create(ContainerInterface $container) {
       $container->get('config.typed'),
       $container->get('module_handler'),
       $container->get('module_installer'),
-      $container->get('theme_handler')
+      $container->get('theme_handler'),
+      $container->get('renderer')
     );
   }
 
@@ -185,7 +195,7 @@ public function buildForm(array $form, FormStateInterface $form_state) {
           '#theme' => 'item_list',
           '#items' => $change_list,
         );
-        $change_list_html = drupal_render($change_list_render);
+        $change_list_html = $this->renderer->render($change_list_render);
         drupal_set_message($this->t('Your current configuration has changed. Changes to these configuration items will be lost on the next synchronization: !changes', array('!changes' => $change_list_html)), 'warning');
       }
     }
@@ -401,5 +411,4 @@ public static function finishBatch($success, $results, $operations) {
     }
   }
 
-
 }