diff --git a/core/includes/theme.inc b/core/includes/theme.inc
index dce273f..69625af 100644
--- a/core/includes/theme.inc
+++ b/core/includes/theme.inc
@@ -1352,14 +1352,12 @@ function template_preprocess_html(&$variables) {
   }
 
   $variables['head_title_array'] = $head_title;
-  $output = '';
-  $build = array(
+
+  $variables['head_title'] = array(
     '#type' => 'inline_template',
     '#template' => '{{ head_title|safe_join(" | ") }}',
     '#context' => array('head_title' => $head_title),
   );
-  $output = \Drupal::service('renderer')->render($build);
-  $variables['head_title'] = $output;
 
   // Collect all attachments. This must happen in the preprocess function for
   // #type => html, to ensure that attachments added in #pre_render callbacks