diff --git a/classes/order/OrderReturn.php b/classes/order/OrderReturn.php
index 96cfd86f1..c141b1051 100644
--- a/classes/order/OrderReturn.php
+++ b/classes/order/OrderReturn.php
@@ -226,7 +226,7 @@ class OrderReturnCore extends ObjectModel
 	public static function addReturnedQuantity(&$products, $id_order)
 	{
 		$details = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
-			SELECT od.id_order_detail, IFNULL(GREATEST(od.product_quantity_return, ord.product_quantity),0) as qty_returned
+			SELECT od.id_order_detail, GREATEST(od.product_quantity_return, IFNULL(ord.product_quantity,0)) as qty_returned
 			FROM '._DB_PREFIX_.'order_detail od
 			LEFT JOIN '._DB_PREFIX_.'order_return_detail ord
 			ON ord.id_order_detail = od.id_order_detail