[Advanced Custom Fields] – Get subtitle for category

Hi!

I am using wordpress 4.0.1 and installed the ACF plugin. Then created a “subtitle” custom field for categories.

Now I want to show the category subtitle in category.php …

According to the documentation I should use this:

<?php
	// vars
	$queried_object = get_queried_object();
	$taxonomy = $queried_object->taxonomy;
	$term_id = $queried_object->term_id;
?>
<h2><?php the_field('subtitle', $term_id ); ?></h2>

Unfortunately nothing shows. What is the mistake here.
(I tried to place the above code outside and inside loop – both show nothing!)

Any help?
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