diff --git a/src/www/vpn_ipsec_mobile.php b/src/www/vpn_ipsec_mobile.php
index 9210dc493..364baf4ea 100644
--- a/src/www/vpn_ipsec_mobile.php
+++ b/src/www/vpn_ipsec_mobile.php
@@ -30,6 +30,7 @@
 require_once("guiconfig.inc");
 require_once("interfaces.inc");
 require_once("filter.inc");
+require_once("system.inc");
 require_once("plugins.inc.d/ipsec.inc");
 
 config_read_array('ipsec', 'client');