diff --git a/docs/extensions/listings/revealjs-formats.yml b/docs/extensions/listings/revealjs-formats.yml
index df9f6851b5..bbaa7f16a5 100644
--- a/docs/extensions/listings/revealjs-formats.yml
+++ b/docs/extensions/listings/revealjs-formats.yml
@@ -66,3 +66,10 @@
   path: https://github.com/cct-datascience/uaz-revealjs
   author: '[CCT Data Science Team](https://github.com/cct-datascience)'
   description: University of Arizona inspired theme for revealjs
+
+- name: mozilla-revealjs
+  path: https://github.com/dkapitan/quarto-revealjs-mozilla
+  author: '[Daniel Kapitan](https://github.com/dkapitan)'
+  description: Theme for reveal.js based on the (old) Mozilla brand style guide.
+
+