How to add category of an event in timeline

Hello
I try to add the category of an event in timeline overview. I found the file:
/components/com_eventbooking/themes/default/common/events_timeline.php
I added:
<div><span class="eb-category"><?php echo $event->category_id; ?></span></div>
It works, but it shows the ID of the category, not the name. How can I show the name of the category?

Thanks for your help,
Pascale

sorry, I just found out:
<div><span class="eb-category"><?php echo $event->category_name; ?></span></div>

Yes, that's correct. I'm glad you figured out

Tuan