Header image on category page.

Hello, I'd like to be able to add a specific header image to a category page. I've tried using a plugin (Category Featured Images), and this allows me to choose a header image. But when I navigate to a category page, my featured image isn't recognized. Instead, it displays the same header image as my home page. The posts pages have their own featured header; no problems there. I've tried the various options available in the customiser (enable header on entire site, posts/pages etc.) Thanks!