diff --git a/core/modules/rest/src/Plugin/views/display/RestExport.php b/core/modules/rest/src/Plugin/views/display/RestExport.php
index 069951c..eefdf39 100644
--- a/core/modules/rest/src/Plugin/views/display/RestExport.php
+++ b/core/modules/rest/src/Plugin/views/display/RestExport.php
@@ -15,6 +15,7 @@
 use Drupal\Core\Routing\RouteProviderInterface;
 use Drupal\Core\State\StateInterface;
 use Drupal\views\Plugin\views\display\ResponseDisplayPluginInterface;
+use Drupal\views\Render\ViewsRenderPipelineSafeString;
 use Drupal\views\ViewExecutable;
 use Drupal\views\Plugin\views\display\PathPluginBase;
 use Symfony\Component\DependencyInjection\ContainerInterface;
@@ -311,7 +312,7 @@ public function execute() {
   public function render() {
     $build = array();
     $build['#markup'] = $this->renderer->executeInRenderContext(new RenderContext(), function() {
-      return $this->view->style_plugin->render();
+      return ViewsRenderPipelineSafeString::create($this->view->style_plugin->render());
     });
 
     $this->view->element['#content_type'] = $this->getMimeType();