diff --git a/www/help.php b/www/help.php
index 8f0848b..09992f9 100644
--- a/www/help.php
+++ b/www/help.php
@@ -18,7 +18,7 @@
 <?
 	loadem("index");
 
-	$id = intval($_REQUEST['id']);
+	$id = array_key_exists('id',$_REQUEST)?intval($_REQUEST['id']):0;
 
 	showheader(_("Welcome to CAcert.org"));
 	includeit($id, "help");