diff --git a/core/modules/shortcut/src/Entity/ShortcutHtmlRouteProvider.php b/core/modules/shortcut/src/Entity/ShortcutHtmlRouteProvider.php
index 6f9ea13..bff6d72 100644
--- a/core/modules/shortcut/src/Entity/ShortcutHtmlRouteProvider.php
+++ b/core/modules/shortcut/src/Entity/ShortcutHtmlRouteProvider.php
@@ -31,10 +31,10 @@ public function getRoutes(EntityTypeInterface $entity_type) {
    */
   protected function getAddFormRoute(EntityTypeInterface $entity_type) {
     if ($route = parent::getAddFormRoute($entity_type)) {
-      $route
-        ->setDefault('_title_callback', FALSE)
-        ->setDefault('_title', 'Add link');
-      return $route;
+      $defaults = $route->getDefaults();
+      unset($defaults['_title_callback']);
+      $defaults['_title'] = 'Add link';
+      return $route->setDefaults($defaults);
     }
   }
 
@@ -52,10 +52,10 @@ protected function getCanonicalRoute(EntityTypeInterface $entity_type) {
    */
   protected function getEditFormRoute(EntityTypeInterface $entity_type) {
     if ($route = parent::getEditFormRoute($entity_type)) {
-      $route
-        ->setDefault('_title_callback', FALSE)
-        ->setDefault('_title', 'Edit');
-      return $route;
+      $defaults = $route->getDefaults();
+      unset($defaults['_title_callback']);
+      $defaults['_title'] = 'Edit';
+      return $route->setDefaults($defaults);
     }
   }