diff --git a/core/modules/search/tests/modules/search_embedded_form/search_embedded_form.module b/core/modules/search/tests/modules/search_embedded_form/search_embedded_form.module
index 75ddd3d..6ce623d 100644
--- a/core/modules/search/tests/modules/search_embedded_form/search_embedded_form.module
+++ b/core/modules/search/tests/modules/search_embedded_form/search_embedded_form.module
@@ -16,5 +16,5 @@
  */
 function search_embedded_form_preprocess_search_result(&$variables) {
   $form = \Drupal::formBuilder()->getForm('Drupal\search_embedded_form\Form\SearchEmbeddedForm');
-  $variables['snippet'] = SafeMarkup::set(SafeMarkup::escape($variables['snippet']) . drupal_render($form));
+  $variables['snippet'] = ['#markup' => SafeMarkup::escape($variables['snippet']), $form];
 }