diff --git a/core/modules/system/lib/Drupal/system/SystemConfigFormBase.php b/core/modules/system/lib/Drupal/system/SystemConfigFormBase.php
index 47fa7b1..36b51e3 100644
--- a/core/modules/system/lib/Drupal/system/SystemConfigFormBase.php
+++ b/core/modules/system/lib/Drupal/system/SystemConfigFormBase.php
@@ -74,12 +74,12 @@ public function submitForm(array &$form, array &$form_state) {
   /**
    * {@inheritdoc}
    */
-  protected function config() {
+  protected function config($name) {
     if (!$this->configFactory) {
       $container = $this->container();
       $this->configFactory = $container->get('config.factory');
       $this->configFactory->enterContext($container->get('config.context.free'));
     }
-    return $this->configFactory;
+    return $this->configFactory->get($name);
   }
 }