diff --git a/core/lib/Drupal/Core/Routing/CurrentRouteMatch.php b/core/lib/Drupal/Core/Routing/CurrentRouteMatch.php
index b2774df..c938c2a 100644
--- a/core/lib/Drupal/Core/Routing/CurrentRouteMatch.php
+++ b/core/lib/Drupal/Core/Routing/CurrentRouteMatch.php
@@ -80,6 +80,12 @@ public function getRawParameters() {
     return new ParameterBag($parameters);
   }
 
+  /**
+   * Retrieves the current request object from the request stack.
+   *
+   * @return Request|NULL
+   *   The request object.
+   */
   protected function getCurrentRequest() {
     return $this->requestStack->getCurrentRequest();
   }