diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index 277f1c85e40..f90505a58d9 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -4828,10 +4828,10 @@ class FactureLigne extends CommonInvoiceLine
 	 * Warning: If invoice is a replacement invoice, this->fk_prev_id is id of the replaced line.
 	 *
 	 * @param  int     $invoiceid      Invoice id
-	 * @param  bool    $include_credit_note
+	 * @param  bool    $include_credit_note		Include credit note or not
 	 * @return int                     >= 0
 	 */
-	function get_prev_progress($invoiceid, $include_credit_note = true)
+	function get_prev_progress($invoiceid, $include_credit_note=true)
 	{
 		if (is_null($this->fk_prev_id) || empty($this->fk_prev_id) || $this->fk_prev_id == "") {
 			return 0;