diff --git a/htdocs/fourn/commande/list.php b/htdocs/fourn/commande/list.php
index 3080a184abb..5560f251e6f 100644
--- a/htdocs/fourn/commande/list.php
+++ b/htdocs/fourn/commande/list.php
@@ -362,6 +362,7 @@ if (empty($reshook)) {
 		$validate_invoices = GETPOST('validate_invoices', 'int');
 
 		$TFact = array();
+		/** @var FactureFournisseur[] $TFactThird */
 		$TFactThird = array();
 
 		$nb_bills_created = 0;
@@ -380,7 +381,7 @@ if (empty($reshook)) {
 
 			$objecttmp = new FactureFournisseur($db);
 			if (!empty($createbills_onebythird) && !empty($TFactThird[$cmd->socid])) {
-				$objecttmp = $TFactThird[$cmd->socid]; // If option "one bill per third" is set, we use already created order.
+				$objecttmp = $TFactThird[$cmd->socid]; // If option "one bill per third" is set, we use already created supplier invoice.
 			} else {
 				$objecttmp->socid = $cmd->socid;
 				$objecttmp->type = $objecttmp::TYPE_STANDARD;
@@ -505,7 +506,8 @@ if (empty($reshook)) {
 								false,
 								$lines[$i]->array_options,
 								$lines[$i]->fk_unit,
-								$objecttmp->origin_id,
+								// we use the id of each order, not the id of the first one stored in $objecttmp->origin_id
+								$lines[$i]->fk_commande,
 								$lines[$i]->pa_ht,
 								$lines[$i]->ref_supplier,
 								$lines[$i]->special_code,