diff --git a/classes/postHandler.php b/classes/postHandler.php
index 4fe9f95..f8a5c02 100644
--- a/classes/postHandler.php
+++ b/classes/postHandler.php
@@ -93,9 +93,9 @@ class PostHandler
                 else $article["generic"] = $product["generic_name"];
             }
             else {
-                $article["nutri-score"] = "";
-                $article["generic"] = "";
-                $article["ingredients"] = "";
+                $article["nutri-score"] = null;
+                $article["generic"] = null;
+                $article["ingredients"] = null;
             }
             array_push($formatted_articles, $article);
         }
@@ -103,7 +103,8 @@ class PostHandler
         return $formatted_articles;
     }
 
-    private function get_openfoodfacts_product($barcode){
+    private function get_openfoodfacts_product($barcode)
+    {
         $country = 'fr';
         $productSlug = 'produit';
         $url = 'https://{country}.openfoodfacts.org/api/v0/{product}/{scan}.json';