diff --git a/core/lib/Drupal/Core/Render/Renderer.php b/core/lib/Drupal/Core/Render/Renderer.php
index 5b3bbe4..bf568d1 100644
--- a/core/lib/Drupal/Core/Render/Renderer.php
+++ b/core/lib/Drupal/Core/Render/Renderer.php
@@ -735,7 +735,7 @@ protected function ensureMarkupIsSafe(array $elements) {
     if (!empty($elements['#plain_text'])) {
       $string = $elements['#plain_text'];
       if (!SafeMarkup::isSafe($string)) {
-        $string = Html::escape($string)
+        $string = Html::escape($string);
       }
       $elements['#markup'] = SafeString::create($string);
     }