diff --git a/application/portalwebpage.class.inc.php b/application/portalwebpage.class.inc.php
index 233d1fe78..4fbee9545 100644
--- a/application/portalwebpage.class.inc.php
+++ b/application/portalwebpage.class.inc.php
@@ -164,6 +164,7 @@ EOF
 	
 	public function output()
 	{
+		$sMenu = '';
 		$this->AddMenuButton('logoff', 'Portal:Disconnect', '../pages/logoff.php?portal=1'); // This menu is always present and is the last one
 		foreach($this->m_aMenuButtons as $aMenuItem)
 		{
@@ -173,4 +174,4 @@ EOF
 		parent::output();
 	}
 }
-?>
\ No newline at end of file
+?>