diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index 33d6e23c6b3764281bfa537410c19ce81c305a56..5c0a5f223919875738c6c03056e777207a33c6af 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -387,8 +387,8 @@ class Facture extends CommonInvoice
 				{
 					$newinvoiceline=$this->lines[$i];
 					$newinvoiceline->fk_facture=$this->id;
-                    $newinvoiceline->origin = $this->element;
-                    $newinvoiceline->origin_id = $this->lines[$i]->id;
+                    $newinvoiceline->origin = $this->element;           // TODO This seems not used. Here we but origin 'facture' but after
+                    $newinvoiceline->origin_id = $this->lines[$i]->id;  // we put an id of object !
 					if ($result >= 0 && ($newinvoiceline->info_bits & 0x01) == 0)	// We keep only lines with first bit = 0
 					{
 						// Reset fk_parent_line for no child products and special product