diff --git a/sources/extra_files/app/usr_share_zabbix_conf_zabbix.conf.php b/sources/extra_files/app/usr_share_zabbix_conf_zabbix.conf.php
index 1f2cbc0..67b13e6 100644
--- a/sources/extra_files/app/usr_share_zabbix_conf_zabbix.conf.php
+++ b/sources/extra_files/app/usr_share_zabbix_conf_zabbix.conf.php
@@ -1,5 +1,6 @@
+<?php
 // Zabbix GUI configuration file.
-global \$DB;
+global $DB;
 
 $DB['TYPE']     = 'MYSQL';
 $DB['SERVER']   = 'localhost';