diff --git a/freebox/api/v3/services/FileSystem/FileSystemListing.php b/freebox/api/v3/services/FileSystem/FileSystemListing.php
index a0ae992..d1f829e 100644
--- a/freebox/api/v3/services/FileSystem/FileSystemListing.php
+++ b/freebox/api/v3/services/FileSystem/FileSystemListing.php
@@ -29,12 +29,12 @@ class FileSystemListing extends Service {
             'removeHidden'      => $removeHidden,
         ]);
 
-        $FsTask_xs = $rest->getCurlResponse()['result'];
-        $FsTasks   = [];
-        foreach( $FsTask_xs as $fsTask_x) {
-            $FsTasks[] = new FileInfo( $fsTask_x);
+        $FileInfo_xs = $rest->getCurlResponse()['result'];
+        $FileInfos   = [];
+        foreach( $FileInfo_xs as $FileInfo_x) {
+            $FileInfos[] = new FileInfo( $FileInfo_x);
         }
-        return $FsTasks;
+        return $FileInfos;
     }
 
     /**
diff --git a/freebox/api/v3/services/login/Session.php b/freebox/api/v3/services/login/Session.php
index f170878..9e0153c 100644
--- a/freebox/api/v3/services/login/Session.php
+++ b/freebox/api/v3/services/login/Session.php
@@ -48,6 +48,9 @@ class Session extends Service {
             'password'  => hash_hmac( 'sha1', $this->challenge, $this->application->getAppToken()),
         ]);
 
+        if( ! $rest->getCurlResponse()['success']){
+            throw new \Exception( $rest->getCurlResponse()['error_code'] .' : '. $rest->getCurlResponse()['msg']);
+        }
         $this->session_token = $rest->getCurlResponse()['result']['session_token'];
     }