diff --git a/core/lib/Drupal/Core/Render/theme.api.php b/core/lib/Drupal/Core/Render/theme.api.php
index 8df08c3e9a..d0c45eac9b 100644
--- a/core/lib/Drupal/Core/Render/theme.api.php
+++ b/core/lib/Drupal/Core/Render/theme.api.php
@@ -369,7 +369,7 @@
  *   '#cache' => [
  *     'keys' => ['entity_view', 'node', $node->id()],
  *     'contexts' => ['languages'],
- *     'tags' => ['node:' . $node->getCacheTags()],
+ *     'tags' => $node->getCacheTags(),
  *     'max-age' => Cache::PERMANENT,
  *   ],
  * @endcode