diff --git a/core/modules/search/lib/Drupal/search/Controller/SearchController.php b/core/modules/search/lib/Drupal/search/Controller/SearchController.php
index 1adda0d..402ad53 100644
--- a/core/modules/search/lib/Drupal/search/Controller/SearchController.php
+++ b/core/modules/search/lib/Drupal/search/Controller/SearchController.php
@@ -94,7 +94,7 @@ public function view(Request $request, SearchPageInterface $entity, $keys = '')
     );
 
     $build['search_results'] = array(
-      '#theme' => array('item_list__search_results__' . $plugin->getPluginId(), 'item_list__search_results'),
+      '#theme' => 'item_list',
       '#items' => $results,
       '#empty' => array(
         // @todo Revisit where this help text is added.
@@ -104,7 +104,7 @@ public function view(Request $request, SearchPageInterface $entity, $keys = '')
       '#attributes' => array(
         'class' => array(
           'search-results',
-          $plugin->getPluginId() . '_search-results'
+          $plugin->getPluginId() . '_search-results',
         )
       )
     );