diff -u b/core/lib/Drupal/Core/Url.php b/core/lib/Drupal/Core/Url.php
--- b/core/lib/Drupal/Core/Url.php
+++ b/core/lib/Drupal/Core/Url.php
@@ -22,7 +22,7 @@
  * - \Drupal\Core\Url::fromUri
  * - \Drupal\Core\Url::fromUserInput
  *
- * @see \Drupal\Core\Entity\EntityBase::toUrl
+ * @see \Drupal\Core\Entity\EntityBase::toUrl()
  */
 class Url implements TrustedCallbackInterface {
   use DependencySerializationTrait;