diff --git a/core/lib/Drupal/Core/Render/Renderer.php b/core/lib/Drupal/Core/Render/Renderer.php
index c2e03c9..41ac83f 100644
--- a/core/lib/Drupal/Core/Render/Renderer.php
+++ b/core/lib/Drupal/Core/Render/Renderer.php
@@ -435,7 +435,6 @@ protected function doRender(&$elements, $is_root_call = FALSE) {
     // Check the elements for insecure HTML and pass through sanitization.
     if (isset($elements)) {
       $markup_keys = array(
-        '#description',
         '#field_prefix',
         '#field_suffix',
       );