diff --git a/usr/local/www/vpn_ipsec_mobile.php b/usr/local/www/vpn_ipsec_mobile.php
index 9d81c53f90..f0df0b7a37 100755
--- a/usr/local/www/vpn_ipsec_mobile.php
+++ b/usr/local/www/vpn_ipsec_mobile.php
@@ -355,16 +355,19 @@ function login_banner_change() {
 						<td width="78%" class="vtable">
 							<?=gettext("Source"); ?>:&nbsp;&nbsp;
 							<select name="user_source" class="formselect" id="user_source">
-								<?
-                                    foreach ($config['system']['authserver'] as $authcfg) {
-                                        if ($authcfg['type'] == 'ldap') {
-                                            $selected = "";
-                                            if ($pconfig['user_source'] == $authcfg['name'])  $selected = "selected";
-                                                 print '<option value="'.$authcfg['name'].'" '. $selected.'>'.$authcfg['name'].'</option>';
-                                        }
-                                    }
-                                ?>
 								<option value="system" <?php if ($pconfig['user_source'] == 'system') echo "selected"; ?>><?=gettext("system"); ?></option>
+								<?
+									if (isset($config['system']['authserver']))
+                                    {
+										foreach ($config['system']['authserver'] as $authcfg) {
+											if ($authcfg['type'] == 'ldap') {
+												$selected = "";
+												if ($pconfig['user_source'] == $authcfg['name'])  $selected = "selected";
+												print '<option value="'.$authcfg['name'].'" '. $selected.'>'.$authcfg['name'].'</option>';
+											}
+										}
+									}
+                                ?>								
 							</select>
 						</td>
 					</tr>