diff --git a/core/modules/ckeditor/src/Plugin/Editor/CKEditor.php b/core/modules/ckeditor/src/Plugin/Editor/CKEditor.php
index 949c8e5..7e725ed 100644
--- a/core/modules/ckeditor/src/Plugin/Editor/CKEditor.php
+++ b/core/modules/ckeditor/src/Plugin/Editor/CKEditor.php
@@ -145,7 +145,7 @@ public function settingsForm(array $form, FormStateInterface $form_state, Editor
         'library' => array('ckeditor/drupal.ckeditor.admin'),
         'drupalSettings' => [
           'ckeditor' => [
-            'toolbarAdmin' => drupal_render($ckeditor_settings_toolbar),
+            'toolbarAdmin' => \Drupal::service('renderer')->render($ckeditor_settings_toolbar),
           ],
         ],
       ),