diff --git a/app/KernelLoader.php b/app/KernelLoader.php
index 738d4939f4..473e22d4c3 100644
--- a/app/KernelLoader.php
+++ b/app/KernelLoader.php
@@ -28,9 +28,10 @@ public function __construct(KernelInterface $kernel)
     /**
      * Gets a service by id.
      *
-     * @param string $reference The service id
+     * @template Service
+     * @param string|class-string<Service> $reference The service id
      *
-     * @return mixed The service
+     * @return mixed|Service The service
      */
     public function get(string $reference)
     {