diff --git a/application/portalwebpage.class.inc.php b/application/portalwebpage.class.inc.php
index d7e202abf..3f76927f8 100644
--- a/application/portalwebpage.class.inc.php
+++ b/application/portalwebpage.class.inc.php
@@ -165,7 +165,7 @@ EOF
 	public function output()
 	{
 		$sMenu = '';
-		$this->AddMenuButton('logoff', 'Portal:Disconnect', '../pages/logoff.php?portal=1'); // This menu is always present and is the last one
+		$this->AddMenuButton('logoff', 'Portal:Disconnect', '../pages/logoff.php'); // This menu is always present and is the last one
 		foreach($this->m_aMenuButtons as $aMenuItem)
 		{
 			$sMenu .= "<a class=\"button\" id=\"{$aMenuItem['id']}\" href=\"{$aMenuItem['hyperlink']}\"><span>".Dict::S($aMenuItem['label'])."</span></a>";