diff --git a/htdocs/expedition/class/expedition.class.php b/htdocs/expedition/class/expedition.class.php
index f258423108c..04849a72dd9 100644
--- a/htdocs/expedition/class/expedition.class.php
+++ b/htdocs/expedition/class/expedition.class.php
@@ -2162,7 +2162,7 @@ class Expedition extends CommonObject
 				} else {
 					$qty = $obj->edbqty;
 				}
-				if ($qty <= 0) {
+				if ($qty <= 0 || ($qty < 0 && !getDolGlobalInt('SHIPMENT_ALLOW_NEGATIVE_QTY'))) {
 					continue;
 				}
 				dol_syslog(get_class($this) . "::valid movement index " . $i . " ed.rowid=" . $obj->rowid . " edb.rowid=" . $obj->edbrowid);