diff --git a/htdocs/comm/propal/class/propal.class.php b/htdocs/comm/propal/class/propal.class.php
index 3bb8a5b44de..670f7d10cb8 100644
--- a/htdocs/comm/propal/class/propal.class.php
+++ b/htdocs/comm/propal/class/propal.class.php
@@ -297,7 +297,7 @@ class Propal extends CommonObject
 		'ref_client' =>array('type'=>'varchar(255)', 'label'=>'RefCustomer', 'enabled'=>1, 'visible'=>-1, 'position'=>22),
 		'ref_ext' =>array('type'=>'varchar(255)', 'label'=>'RefExt', 'enabled'=>1, 'visible'=>0, 'position'=>40),
 		'fk_soc' =>array('type'=>'integer:Societe:societe/class/societe.class.php', 'label'=>'ThirdParty', 'enabled'=>'$conf->societe->enabled', 'visible'=>-1, 'position'=>23),
-		'fk_projet' =>array('type'=>'integer:Project:projet/class/project.class.php:1:fk_statut=1', 'label'=>'Fk projet', 'enabled'=>isModEnabled('project'), 'visible'=>-1, 'position'=>24),
+		'fk_projet' =>array('type'=>'integer:Project:projet/class/project.class.php:1:fk_statut=1', 'label'=>'Fk projet', 'enabled'=>"isModEnabled('project')", 'visible'=>-1, 'position'=>24),
 		'tms' =>array('type'=>'timestamp', 'label'=>'DateModification', 'enabled'=>1, 'visible'=>-1, 'notnull'=>1, 'position'=>25),
 		'datec' =>array('type'=>'datetime', 'label'=>'DateCreation', 'enabled'=>1, 'visible'=>-1, 'position'=>55),
 		'datep' =>array('type'=>'date', 'label'=>'Date', 'enabled'=>1, 'visible'=>-1, 'position'=>60),