From 9d1915f9c289d9734347ab6dca50744666315ba7 Mon Sep 17 00:00:00 2001
From: Florian HENRY <florian.henry@open-concept.pro>
Date: Wed, 6 Oct 2021 09:56:10 +0200
Subject: [PATCH] fix php warning

---
 htdocs/product/class/api_products.class.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/htdocs/product/class/api_products.class.php b/htdocs/product/class/api_products.class.php
index 2e0d21b0456..7b19739d10e 100644
--- a/htdocs/product/class/api_products.class.php
+++ b/htdocs/product/class/api_products.class.php
@@ -462,7 +462,7 @@ class Products extends DolibarrApi
 
 		$childsArbo = $this->product->getChildsArbo($id, 1);
 
-		$keys = ['rowid', 'qty', 'fk_product_type', 'label', 'incdec'];
+		$keys = ['rowid','qty', 'fk_product_type', 'label', 'incdec','ref'];
 		$childs = [];
 		foreach ($childsArbo as $values) {
 			$childs[] = array_combine($keys, $values);