diff --git a/htdocs/comm/propal/class/propal.class.php b/htdocs/comm/propal/class/propal.class.php
index a9782d21dac..2b3ae7834e1 100644
--- a/htdocs/comm/propal/class/propal.class.php
+++ b/htdocs/comm/propal/class/propal.class.php
@@ -12,6 +12,7 @@
  * Copyright (C) 2012      Cedric Salvador          <csalvador@gpcsolutions.fr>
  * Copyright (C) 2013      Florian Henry		  	<florian.henry@open-concept.pro>
  * Copyright (C) 2014-2015 Marcos García            <marcosgdf@gmail.com>
+ * Copyright (C) 2018       Frédéric France         <frederic.france@netlogic.fr>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -1018,6 +1019,7 @@ class Propal extends CommonObject
                 // Add linked object (deprecated, use ->linkedObjectsIds instead)
                 if (! $error && $this->origin && $this->origin_id)
                 {
+                    dol_syslog('Deprecated use of linked object, use ->linkedObjectsIds instead', LOG_WARNING);
                 	$ret = $this->add_object_linked();
                 	if (! $ret)	dol_print_error($this->db);
                 }
@@ -1090,13 +1092,6 @@ class Propal extends CommonObject
 					}
 				}
 
-				// Add linked object
-				if (! $error && $this->origin && $this->origin_id)
-				{
-					$ret = $this->add_object_linked();
-					if (! $ret)	dol_print_error($this->db);
-				}
-
 				// Set delivery address
 				if (! $error && $this->fk_delivery_address)
 				{