diff --git a/matrix/synapse/README.md b/matrix/synapse/README.md
index a20f3a9..c52cb0a 100644
--- a/matrix/synapse/README.md
+++ b/matrix/synapse/README.md
@@ -301,7 +301,7 @@ forgotten_room_retention_period: 7d
 ```
 
 
-# Signon
+# Authentication {#authentication}
 
 Logging in can be done in basically two ways: an internal or external
 database. Let's start with the first: users and their passwords are stored in