diff --git a/htdocs/commande/class/commande.class.php b/htdocs/commande/class/commande.class.php
index b77f7712f90..6eb61c0f983 100644
--- a/htdocs/commande/class/commande.class.php
+++ b/htdocs/commande/class/commande.class.php
@@ -961,7 +961,7 @@ class Commande extends CommonOrder
 		$sql .= ", ".($this->fk_account > 0 ? $this->fk_account : 'NULL');
 		$sql .= ", ".($this->availability_id > 0 ? $this->availability_id : "null");
 		$sql .= ", ".($this->demand_reason_id > 0 ? $this->demand_reason_id : "null");
-		$sql .= ", ".($this->$delivery_date ? "'".$this->db->idate($this->$delivery_date)."'" : "null");
+		$sql .= ", ".($delivery_date ? "'".$this->db->idate($delivery_date)."'" : "null");
 		$sql .= ", ".($this->fk_delivery_address > 0 ? $this->fk_delivery_address : 'NULL');
 		$sql .= ", ".($this->shipping_method_id > 0 ? $this->shipping_method_id : 'NULL');
 		$sql .= ", ".($this->warehouse_id > 0 ? $this->warehouse_id : 'NULL');