递归jQuery Ajax

I want my function to process the results, then call itself from the done callback.

function geocode(id) {
    console.log(id + ' geocode');
    $.ajax({
        url: '/customers/' + id + '/geocode',
        dataType: 'json',
        data: {
            id: id,
        }
    }).done(function() {
        var newID = id++;
        console.log(id + ' done.');
        geocode(newID);
    });
}

This isn't incrementing though, say if I start it at 1, it just loops on 2 forever. I know it's a pain returning data from ajax, but I've never fully got my head round the nuances