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($section=null) {
diff --git a/include/staff/settings-tickets.inc.php b/include/staff/settings-tickets.inc.php
index 751df274c22d7a4264bd83eda61c2e6111a8664a..59570b4423a44d7f95f435177b84044b2b7ef4f3 100644
--- a/include/staff/settings-tickets.inc.php
+++ b/include/staff/settings-tickets.inc.php
@@ -166,7 +166,9 @@ if(!($maxfileuploads=ini_get('max_file_uploads')))
             <td><?php echo __('Maximum <b>Open</b> Tickets');?>:</td>
             <td>
                 <input type="text" name="max_open_tickets" size=4 value="<?php echo $config['max_open_tickets']; ?>">
-                <?php echo __('per end user'); ?> <i class="help-tip icon-question-sign" href="#maximum_open_tickets"></i>
+                <?php echo __('per end user'); ?>
+                <span class="error">*&nbsp;<?php echo $errors['max_open_tickets']; ?></span>
+                <i class="help-tip icon-question-sign" href="#maximum_open_tickets"></i>
             </td>
         </tr>
         <tr>