diff --git a/formats/JsonFormat.php b/formats/JsonFormat.php
index ce25953..e173f23 100644
--- a/formats/JsonFormat.php
+++ b/formats/JsonFormat.php
@@ -6,7 +6,6 @@
 class JsonFormat extends FormatAbstract{
 
     public function stringify(){
-        // FIXME : sometime content can be null, transform to empty string
         $items = $this->getItems();
 
         return json_encode($items, JSON_PRETTY_PRINT);