diff --git a/core/modules/search/lib/Drupal/search/Form/SearchSettingsForm.php b/core/modules/search/lib/Drupal/search/Form/SearchSettingsForm.php
index 3ec0ba1..610821c 100644
--- a/core/modules/search/lib/Drupal/search/Form/SearchSettingsForm.php
+++ b/core/modules/search/lib/Drupal/search/Form/SearchSettingsForm.php
@@ -30,7 +30,7 @@ class SearchSettingsForm extends SystemConfigFormBase {
    *
    * @var \Drupal\Core\Config\ConfigFactory
    */
-  private $configFactory;
+  protected $configFactory;
 
   /**
    * Constructs a \Drupal\user\SearchSettingsForm object.