diff --git a/htdocs/public/demo/index.php b/htdocs/public/demo/index.php
index 28ef5d33504..623e0ae396e 100644
--- a/htdocs/public/demo/index.php
+++ b/htdocs/public/demo/index.php
@@ -173,6 +173,8 @@ asort($orders);
 //var_dump($orders);
 
 print '<form name="choosedemo" action="'.$_SERVER["PHP_SELF"].'" method="POST">';
+print '<input type="hidden" name="username" value="demo">';
+print "\n";
 
 print '<table style="font-size:14px;">';