diff --git a/example-config.yaml b/example-config.yaml
index 4ab42797..f468124e 100644
--- a/example-config.yaml
+++ b/example-config.yaml
@@ -62,6 +62,8 @@ appservice:
 
     # Community ID for bridged users (changes registration file) and rooms.
     # Must be created manually.
+    #
+    # Example: "+telegram:example.com". Set to false to disable.
     community_id: false
 
     # Authentication tokens for AS <-> HS communication. Autogenerated; do not modify.