diff --git a/core/modules/views/views.module b/core/modules/views/views.module
index 23fd877..408e934 100644
--- a/core/modules/views/views.module
+++ b/core/modules/views/views.module
@@ -10,6 +10,7 @@
  */
 
 use Drupal\Component\Utility\Html;
+use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Component\Utility\String;
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Database\Query\AlterableInterface;
@@ -25,6 +26,7 @@
 use Drupal\views\Views;
 use Drupal\field\FieldConfigInterface;
 
+
 /**
  * Implements hook_help().
  */
@@ -674,7 +676,7 @@ function views_pre_render_views_form_views_form($element) {
   }
 
   // Apply substitutions to the rendered output.
-  $element['output'] = array('#markup' => str_replace($search, $replace, drupal_render($element['output'])));
+  $element['output'] = array('#markup' => SafeMarkup::set(str_replace($search, $replace, drupal_render($element['output']))));
 
   // Sort, render and add remaining form fields.
   $children = Element::children($element, TRUE);