diff --git a/docs/extensions/listings/shortcodes-and-filters.yml b/docs/extensions/listings/shortcodes-and-filters.yml
index d6b862c4a..c950f536d 100644
--- a/docs/extensions/listings/shortcodes-and-filters.yml
+++ b/docs/extensions/listings/shortcodes-and-filters.yml
@@ -118,6 +118,13 @@
   description: >
     Handle critic markup syntax for tracking changes.
 
+- name: custom-callout
+  path: https://github.com/coatless-quarto/custom-callout
+  author: '[James Joseph Balamuta](https://github.com/coatless/)'
+  description: >
+    Create custom callouts with different colors, icons, and appearance 
+    in your document.
+
 - name: d2
   path: https://github.com/data-intuitive/quarto-d2
   author: '[Data Intuitive](https://github.com/data-intuitive/)'