diff --git a/src/Guards/TokenGuard.php b/src/Guards/TokenGuard.php
index 7d3751f5f..7e478ce2e 100644
--- a/src/Guards/TokenGuard.php
+++ b/src/Guards/TokenGuard.php
@@ -144,7 +144,7 @@ public function validate(array $credentials = [])
     /**
      * Get the client for the incoming request.
      *
-     * @return mixed
+     * @return \Laravel\Passport\Client|null
      */
     public function client()
     {