NavJSON itemLabel2 not showing in menu

[Mike Rockett]

As the title says... 

I'm using the following config:

$options = array(
    'items' => $redirects,
    'itemLabel' => 'name',
    'itemLabel2' => 'updated_at',
    'edit' =>'entity/?id={id}',
    'add' =>'entity/',
    'addLabel' => 'New Redirect',
    'sort' => false,
);

Using 2.5.12 (haven't updated to 2.5.13 yet).

[Mike Rockett]

Me being dumb again -- 'updated_at' is not a string. Very clever indeed.

Edit: No, that wasn't it. But it works now...