diff --git a/htdocs/contrat/class/contrat.class.php b/htdocs/contrat/class/contrat.class.php
index a1696c749f8..f1c0f1343b7 100644
--- a/htdocs/contrat/class/contrat.class.php
+++ b/htdocs/contrat/class/contrat.class.php
@@ -228,7 +228,7 @@ class Contrat extends CommonObject
 	 */
 	function active_line($user, $line_id, $date, $date_end='', $comment='')
 	{
-		$this->lines[$this->lines_id_index_mapper[$line_id]]->active_line($user, $date, $date_end, $comment);
+		return $this->lines[$this->lines_id_index_mapper[$line_id]]->active_line($user, $date, $date_end, $comment);
 	}
 
 
@@ -243,7 +243,7 @@ class Contrat extends CommonObject
 	 */
 	function close_line($user, $line_id, $date_end, $comment='')
 	{
-		$this->lines[$this->lines_id_index_mapper[$line_id]]->close_line($user, $date_end, $comment);
+		return $this->lines[$this->lines_id_index_mapper[$line_id]]->close_line($user, $date_end, $comment);
 	}