diff --git a/core/lib/Drupal.php b/core/lib/Drupal.php
index fb9115a..6ef0b5d 100644
--- a/core/lib/Drupal.php
+++ b/core/lib/Drupal.php
@@ -412,10 +412,13 @@ public static function urlGenerator() {
    * @return string
    *   The generated URL for the given route.
    *
-   * @throws RouteNotFoundException              If the named route doesn't exist
-   * @throws MissingMandatoryParametersException When some parameters are missing that are mandatory for the route
-   * @throws InvalidParameterException           When a parameter value for a placeholder is not correct because
-   *                                             it does not match the requirement
+   * @throws \Symfony\Component\Routing\Exception\RouteNotFoundException
+   *   Thrown when the named route doesn't exist.
+   * @throws \Symfony\Component\Routing\Exception\MissingMandatoryParametersException
+   *   Thrown when some parameters are missing that are mandatory for the route.
+   * @throws \Symfony\Component\Routing\Exception\InvalidParameterException
+   *   Thrown when a parameter value for a placeholder is not correct because it
+   *   does not match the requirement.
    *
    * @see \Drupal\Core\Routing\UrlGeneratorInterface::generateFromRoute()
    */
@@ -479,10 +482,13 @@ public static function linkGenerator() {
    * @return string
    *   An HTML string containing a link to the given route and parameters.
    *
-   * @throws RouteNotFoundException              If the named route doesn't exist
-   * @throws MissingMandatoryParametersException When some parameters are missing that are mandatory for the route
-   * @throws InvalidParameterException           When a parameter value for a placeholder is not correct because
-   *                                             it does not match the requirement
+   * @throws \Symfony\Component\Routing\Exception\RouteNotFoundException
+   *   Thrown when the named route doesn't exist.
+   * @throws \Symfony\Component\Routing\Exception\MissingMandatoryParametersException
+   *   Thrown when some parameters are missing that are mandatory for the route.
+   * @throws \Symfony\Component\Routing\Exception\InvalidParameterException
+   *   Thrown when a parameter value for a placeholder is not correct because it
+   *   does not match the requirement.
    *
    * @see \Drupal\Core\Routing\UrlGeneratorInterface::generateFromRoute()
    * @see \Drupal\Core\Utility\LinkGeneratorInterface::generate()
diff --git a/core/lib/Drupal/Core/Utility/LinkGeneratorInterface.php b/core/lib/Drupal/Core/Utility/LinkGeneratorInterface.php
index ab0ea6e..dba34cd 100644
--- a/core/lib/Drupal/Core/Utility/LinkGeneratorInterface.php
+++ b/core/lib/Drupal/Core/Utility/LinkGeneratorInterface.php
@@ -59,10 +59,13 @@
    * @return string
    *   An HTML string containing a link to the given route and parameters.
    *
-   * @throws RouteNotFoundException              If the named route doesn't exist
-   * @throws MissingMandatoryParametersException When some parameters are missing that are mandatory for the route
-   * @throws InvalidParameterException           When a parameter value for a placeholder is not correct because
-   *                                             it does not match the requirement
+   * @throws \Symfony\Component\Routing\Exception\RouteNotFoundException
+   *   Thrown when the named route doesn't exist.
+   * @throws \Symfony\Component\Routing\Exception\MissingMandatoryParametersException
+   *   Thrown when some parameters are missing that are mandatory for the route.
+   * @throws \Symfony\Component\Routing\Exception\InvalidParameterException
+   *   Thrown when a parameter value for a placeholder is not correct because it
+   *   does not match the requirement.
    *
    * @see \Drupal\Core\Routing\UrlGenerator::generateFromRoute()
    */