diff --git a/src/Provider/Fortnox.php b/src/Provider/Fortnox.php
index ce47132..20d8103 100644
--- a/src/Provider/Fortnox.php
+++ b/src/Provider/Fortnox.php
@@ -86,4 +86,9 @@ protected function checkResponse(ResponseInterface $response, $data)
     protected function createResourceOwner(array $response, AccessToken $token)
     {
     }
+
+    protected function getAuthorizationHeaders($token = null)
+    {
+        return ['Authorization' => "Bearer {$token}"];
+    }
 }