diff --git a/core/modules/config/src/Controller/ConfigController.php b/core/modules/config/src/Controller/ConfigController.php
index 945fbb7dc5..f3cd9825fc 100644
--- a/core/modules/config/src/Controller/ConfigController.php
+++ b/core/modules/config/src/Controller/ConfigController.php
@@ -6,7 +6,7 @@
 use Drupal\Core\Config\ConfigManagerInterface;
 use Drupal\Core\Config\ImportStorageTransformer;
 use Drupal\Core\Config\StorageInterface;
-use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
+use Drupal\Core\Controller\ControllerBase;
 use Drupal\Core\Diff\DiffFormatter;
 use Drupal\Core\File\Exception\FileException;
 use Drupal\Core\File\FileSystemInterface;
@@ -15,13 +15,11 @@
 use Drupal\system\FileDownloadController;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\Request;
-use Drupal\Core\StringTranslation\StringTranslationTrait;
 
 /**
  * Returns responses for config module routes.
  */
-class ConfigController implements ContainerInjectionInterface {
-  use StringTranslationTrait;
+class ConfigController extends ControllerBase {
 
   /**
    * The target storage.