diff --git a/public_html/includes/class/class.LSsession.php b/public_html/includes/class/class.LSsession.php
index 5df39de5..0613e656 100644
--- a/public_html/includes/class/class.LSsession.php
+++ b/public_html/includes/class/class.LSsession.php
@@ -2230,7 +2230,7 @@ class LSsession {
       self :: setLdapServer($_REQUEST['server']);
       $data = array();
       if ( self :: LSldapConnect() ) {
-        session_start();
+        if (session_id()=="") session_start();
         if (isset($_SESSION['LSsession_topDn'])) {
           $sel = $_SESSION['LSsession_topDn'];
         }