diff --git a/public_html/includes/class/class.LSauthMethod.php b/public_html/includes/class/class.LSauthMethod.php
index d45fb93f..8c0ac211 100644
--- a/public_html/includes/class/class.LSauthMethod.php
+++ b/public_html/includes/class/class.LSauthMethod.php
@@ -60,7 +60,8 @@ class LSauthMethod {
$result = $authobject -> searchObject(
$this -> authData['username'],
LSsession :: getTopDn(),
- (isset(LSsession :: $ldapServer['authObjectFilter'])?LSsession :: $ldapServer['authObjectFilter']:NULL)
+ (isset(LSsession :: $ldapServer['authObjectFilter'])?LSsession :: $ldapServer['authObjectFilter']:NULL),
+ array('withoutCache' => true)
);
$nbresult=count($result);