diff --git a/htdocs/projet/class/project.class.php b/htdocs/projet/class/project.class.php
index f5af9518de1..321936ad6a9 100644
--- a/htdocs/projet/class/project.class.php
+++ b/htdocs/projet/class/project.class.php
@@ -1048,7 +1048,7 @@ class Project extends CommonObject
 				}
 
 				$this->db->begin();
-				$res=$clone_project->update_note(dol_html_entity_decode($clone_project->note_private, ENT_QUOTES));
+				$res=$clone_project->update_note(dol_html_entity_decode($clone_project->note_private, ENT_QUOTES), '_private');
 				if ($res < 0)
 				{
 					$this->error.=$clone_project->error;