diff --git a/src/Plugin/search_api/backend/SearchApiAlgoliaBackend.php b/src/Plugin/search_api/backend/SearchApiAlgoliaBackend.php
index 4a16a17..eb6b07d 100644
--- a/src/Plugin/search_api/backend/SearchApiAlgoliaBackend.php
+++ b/src/Plugin/search_api/backend/SearchApiAlgoliaBackend.php
@@ -2,7 +2,9 @@
 
 namespace Drupal\search_api_algolia\Plugin\search_api\backend;
 
+use AlgoliaSearch\AlgoliaException;
 use AlgoliaSearch\Client;
+use Drupal\Component\Utility\Html;
 use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Extension\ModuleHandlerInterface;