diff --git a/htdocs/product/class/product.class.php b/htdocs/product/class/product.class.php
index cdef8e18db7..3ed33ef5235 100644
--- a/htdocs/product/class/product.class.php
+++ b/htdocs/product/class/product.class.php
@@ -4085,7 +4085,7 @@ class Product extends CommonObject
     function load_virtual_stock()
     {
         // phpcs:enable
-        global $conf, $action;
+        global $conf, $hookmanager, $action;
 
         $stock_commande_client=0;
         $stock_commande_fournisseur=0;