diff --git a/config.example.ini b/config.example.ini
index 27adab8..062616b 100644
--- a/config.example.ini
+++ b/config.example.ini
@@ -103,6 +103,11 @@ notify-from=CHANGEME@example.org
 #
 # The redis connection used for the webhooks worker
 webhooks=redis://localhost:6379/1
+#
+# Origin URL for the API
+# Only needed if not run behind a reverse proxy, e.g. for local development.
+# By default, the API port is 100 more than the web port
+#api-origin=http://localhost:5103
 
 [todo.sr.ht::mail]
 #