diff --git a/README.md b/README.md
index 4ddd8ce..12b3caa 100644
--- a/README.md
+++ b/README.md
@@ -8,4 +8,6 @@ Install as a maubot plugin and configure an instance. Until maubot supports inst
 
 Use `!ntfy subscribe server/topic` (for example `!ntfy subscribe ntfy.sh/my_topic`) to subscribe the current room to the ntfy topic. Future messages will be sent to the room.
 
+Use `!ntfy subscribe server/topic <access_token>` (for example `!ntfy subscribe ntfy.sh/my_protected_topic tk_be6uc2ca1x1orakcwg1j3hp0ylot6`) to subscribe to a protected topic via [access token](https://docs.ntfy.sh/config/#access-tokens).
+
 To unsubscribe, use `!ntfy unsubscribe server/topic`.