Can't get wp_localize_script to work

This is my code:

wp_enqueue_script('ms_ajax_localized');
	wp_localize_script( 'ms_ajax_localized', 'MS_Ajax', array(
		'ajaxurl'		=> admin_url( 'admin-ajax.php' ),
		'nextNonce' 	=> wp_create_nonce( 'myajax-next-nonce' ))
	);

I popped it into my functions.php

Bashing my head against the wall. I’ve used wp_localize_script before and I’m just blind to what is wrong this time.

When I load the page I can’t find the script tag in the source anywhere…

Thanks.