diff --git a/src/Grant/AuthCodeGrant.php b/src/Grant/AuthCodeGrant.php
index 14da1f1c..2b7ab787 100644
--- a/src/Grant/AuthCodeGrant.php
+++ b/src/Grant/AuthCodeGrant.php
@@ -163,7 +163,7 @@ class AuthCodeGrant extends AbstractAuthorizeGrant
     /**
      * Validate the authorization code.
      *
-     * @param object                 $authCodePayload
+     * @param \stdClass              $authCodePayload
      * @param ClientEntityInterface  $client
      * @param ServerRequestInterface $request
      */
@@ -198,7 +198,7 @@ class AuthCodeGrant extends AbstractAuthorizeGrant
     /**
      * Get scopes from the auth code payload.
      *
-     * @param object $authCodePayload
+     * @param \stdClass $authCodePayload
      *
      * @return array
      */