diff --git a/docs/configuring-playbook-matrix-corporal.md b/docs/configuring-playbook-matrix-corporal.md
index 03bf7b22f..1b1c0f2b9 100644
--- a/docs/configuring-playbook-matrix-corporal.md
+++ b/docs/configuring-playbook-matrix-corporal.md
@@ -116,6 +116,15 @@ aux_file_definitions:
 
 To learn more about what the policy configuration, see the matrix-corporal documentation on [policy](https://github.com/devture/matrix-corporal/blob/master/docs/policy.md).
 
+### Extending the configuration
+
+There are some additional things you may wish to configure about the component.
+
+Take a look at:
+
+- `roles/custom/matrix-corporal/defaults/main.yml` for some variables that you can customize via your `vars.yml` file
+- `roles/custom/matrix-corporal/templates/config.json.j2` for the bridge's default configuration. You can override settings (even those that don't have dedicated playbook variables) using the `matrix_corporal_configuration_extension_json` variable
+
 ## Installing
 
 After configuring the playbook, run it with [playbook tags](playbook-tags.md) as below: