diff --git a/htdocs/fourn/class/fournisseur.product.class.php b/htdocs/fourn/class/fournisseur.product.class.php
index fa597ab8f7e9c..6847af5edf116 100644
--- a/htdocs/fourn/class/fournisseur.product.class.php
+++ b/htdocs/fourn/class/fournisseur.product.class.php
@@ -439,7 +439,7 @@ public function update_buyprice($qty, $buyprice, $user, $price_base_type, $fourn
 
                 $resql = $this->db->query($sql);
                 if ($resql) {
-                    $this->product_fourn_price_id = $this->db->last_insert_id(MAIN_DB_PREFIX . "product_fournisseur_price");
+                    $idinserted = $this->db->last_insert_id(MAIN_DB_PREFIX . "product_fournisseur_price");
                 }
                 else {
                     $error++;
@@ -462,6 +462,7 @@ public function update_buyprice($qty, $buyprice, $user, $price_base_type, $fourn
 
                     if (empty($error)) {
                         $this->db->commit();
+						$this->product_fourn_price_id = $idinserted;
                         return $this->product_fourn_price_id;
                     } else {
                         $this->db->rollback();