diff --git a/Bridges.md b/Bridges.md
index b7aa5ea..3b28a12 100644
--- a/Bridges.md
+++ b/Bridges.md
@@ -2,7 +2,9 @@
 
 1. [Follow instructions for setting up your bridge](https://docs.mau.fi/bridges/python/setup.html). This should produce a `registration.yaml` file.
 
-    > :exclamation: The bridge `id` and the `sender_localpart` have to match at this time.
+    - Add the prefix `bridge_` to the `as_token`.
+
+    - :exclamation: The bridge `id` and the `sender_localpart` have to match at this time.
 
     > The bridge user and room will be created based on this `id` automatically (e.g. `!id:localhost`). It is also okay if these already exist.