diff --git a/htdocs/fourn/class/fournisseur.commande.class.php b/htdocs/fourn/class/fournisseur.commande.class.php
index 31ff52886c6..523f89862c8 100644
--- a/htdocs/fourn/class/fournisseur.commande.class.php
+++ b/htdocs/fourn/class/fournisseur.commande.class.php
@@ -243,7 +243,8 @@ class CommandeFournisseur extends CommonOrder
             $this->fetch_optionals($this->id,$extralabels);
 
             if ($this->statut == 0) $this->brouillon = 1;
-
+				
+				$this->lines=array();
 
             $sql = "SELECT l.rowid, l.ref as ref_supplier, l.fk_product, l.product_type, l.label, l.description,";
             $sql.= " l.qty,";