diff --git a/app/Http/Controllers/Bo/InvoiceController.php b/app/Http/Controllers/Bo/InvoiceController.php
index f00561a..509a9b7 100644
--- a/app/Http/Controllers/Bo/InvoiceController.php
+++ b/app/Http/Controllers/Bo/InvoiceController.php
@@ -41,9 +41,10 @@ class InvoiceController extends Controller
                 null,
                 'firstname',
                 'lastname',
+                'ref',
             );
         }
-        $searchFields = trans('Nom, Prénom');
+        $searchFields = trans('Nom, Prénom, Référence');
 
         /** Sort columns with a query */
         $this->sortQuery($invoiceModels);