diff --git a/src/Grant/AbstractGrant.php b/src/Grant/AbstractGrant.php
index b52b14cb..bbb9efc0 100644
--- a/src/Grant/AbstractGrant.php
+++ b/src/Grant/AbstractGrant.php
@@ -246,7 +246,7 @@ abstract class AbstractGrant implements GrantTypeInterface
         }
 
         if (empty($validScopes)) {
-            throw OAuthServerException::missingScope($redirectUri);
+            throw OAuthServerException::invalidScope($redirectUri);
         }
 
         return $validScopes;