diff --git a/include/class.config.php b/include/class.config.php
index 61b5012dfb1b6309fec706a0f457a917e6297185..e1e7e7b06594aed1df81e6d89a580ff9cde32209 100644
--- a/include/class.config.php
+++ b/include/class.config.php
@@ -206,6 +206,7 @@ class OsticketConfig extends Config {
         'client_avatar' => 'gravatar.mm',
         'agent_avatar' => 'gravatar.mm',
         'ticket_lock' => 2, // Lock on activity
+        'max_open_tickets' => 0,
     );
 
     function OsticketConfig($section=null) {