diff --git a/content/codeberg-pages/index.md b/content/codeberg-pages/index.md
index aa57329..94cc5d7 100644
--- a/content/codeberg-pages/index.md
+++ b/content/codeberg-pages/index.md
@@ -70,6 +70,15 @@ In all cases, you can append a branch using an `@` (e.g. `https://username.codeb
 If the branch name contains a slash (`/`), they need to be replaced with a tilde (`~`) (e.g. the branch `docs/develop`
 can be accessed via `https://username.codeberg.page/@docs~develop/README.md`).
 
+## Advanced Usage: Custom error page for 404s
+
+You can replace the default 404 error page that Codeberg Pages will show for missing pages with your own version if you prefer.
+To do so start by writing your own HTML file that you want to serve instead.
+
+After creating the HTML with your custom error message, save it as `404.html` in the root of your repository that you use to serve your Codeberg Page.
+
+From then on, your `404.html` file will be served when the error is encountered.
+
 ## Do you have questions, feedback or have you found a bug?
 
 The source code for Codeberg Pages is maintained over at the [Pages Server repository](https://codeberg.org/Codeberg/pages-server);