diff --git a/core/lib/Drupal/Core/Render/Element/Html.php b/core/lib/Drupal/Core/Render/Element/Html.php
index 0b42d54..4de3a9d 100644
--- a/core/lib/Drupal/Core/Render/Element/Html.php
+++ b/core/lib/Drupal/Core/Render/Element/Html.php
@@ -23,7 +23,9 @@ public function getInfo() {
     $class = get_class($this);
     return array(
       '#theme' => 'html',
-      array($class, 'preRenderHtml'),
+      '#pre_render' => array(
+        array($class, 'preRenderHtml'),
+      ),
       // HTML5 Shiv
       '#attached' => array(
         'library' => array('core/html5shiv'),