diff --git a/core/lib/Drupal/Core/Routing/RequestInfo.php b/core/lib/Drupal/Core/Routing/RequestInfo.php
index 2093f64..c62e1f3 100644
--- a/core/lib/Drupal/Core/Routing/RequestInfo.php
+++ b/core/lib/Drupal/Core/Routing/RequestInfo.php
@@ -27,9 +27,12 @@ class RequestInfo {
    *
    * @param \Symfony\Component\HttpFoundation\Request $request
    *   The request object.
+   *
+   * @return $this
    */
   public function setRequest(Request $request) {
     $this->request = $request;
+    return $this;
   }
 
   /**