diff --git a/htdocs/master.inc.php b/htdocs/master.inc.php
index 4005e6a2ed5..0db06b121fd 100644
--- a/htdocs/master.inc.php
+++ b/htdocs/master.inc.php
@@ -49,7 +49,7 @@ $conf->db->host							= $dolibarr_main_db_host;
 $conf->db->port							= $dolibarr_main_db_port;
 $conf->db->name							= $dolibarr_main_db_name;
 $conf->db->user							= $dolibarr_main_db_user;
-$conf->db->pass							= $dolibarr_main_db_pass;
+$conf->db->pass							= empty($dolibarr_main_db_pass)?'':$dolibarr_main_db_pass;
 $conf->db->type							= $dolibarr_main_db_type;
 $conf->db->prefix = $dolibarr_main_db_prefix;
 $conf->db->character_set = $dolibarr_main_db_character_set;