diff --git a/core/lib/Drupal/Core/Render/BigPipeResponse.php b/core/lib/Drupal/Core/Render/BigPipeResponse.php
new file mode 100644
index 0000000..87dc2d8
--- /dev/null
+++ b/core/lib/Drupal/Core/Render/BigPipeResponse.php
@@ -0,0 +1,23 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Core\Render\BigPipeResponse
+ */
+
+namespace Drupal\Core\Render;
+
+use Symfony\Component\HttpFoundation\StreamedResponse;
+use Drupal\Core\Cache\CacheableResponseInterface;
+use Drupal\Core\Cache\CacheableResponseTrait;
+
+/**
+ * A response that contains and can expose cacheability metadata.
+ *
+ * @todo Add doxygen!
+ */
+class BigPipeResponse extends StreamedResponse implements CacheableResponseInterface {
+
+  use CacheableResponseTrait;
+
+}
diff --git a/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php b/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php
index 685cb20..48adfc1 100644
--- a/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php
+++ b/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php
@@ -172,7 +172,7 @@ public function renderResponse(array $main_content, Request $request, RouteMatch
 
     // If there are still placeholders to process use a StreamedResponse to render them.
     if (!empty($placeholders)) {
-      $class='Symfony\Component\HttpFoundation\StreamedResponse';
+      $class='Drupal\Core\Render\BigPipeResponse';
       $markup = $content;
 
       $content = function() use ($markup, $placeholders) {