diff --git a/freebox/utils/RestAuth.php b/freebox/utils/RestAuth.php
index b2f68dc..0db9ce5 100644
--- a/freebox/utils/RestAuth.php
+++ b/freebox/utils/RestAuth.php
@@ -64,7 +64,7 @@ class RestAuth extends alphayax\utils\Rest {
     protected function checkResponse(){
         $response = $this->getCurlResponse();
         if( false === $response['success']){
-            throw new \Exception( $response['success']);
+            throw new \Exception( $response['msg']);
         }
     }