diff --git a/roles/custom/matrix-bridge-matrixzulipbridge/defaults/main.yml b/roles/custom/matrix-bridge-matrixzulipbridge/defaults/main.yml
index 023d0c95b..759fb6480 100644
--- a/roles/custom/matrix-bridge-matrixzulipbridge/defaults/main.yml
+++ b/roles/custom/matrix-bridge-matrixzulipbridge/defaults/main.yml
@@ -108,15 +108,15 @@ matrix_matrixzulipbridge_registration_yaml_matrixzulipbridge:
 # Default registration file consumed by both the homeserver and MatrixZulipBridge.
 # Besides registration information, it contains configuration (see the MatrixZulipBridge key).
 matrix_matrixzulipbridge_registration_yaml:
-  id: matrixzulipbridge
+  id: zulipbridge
   url: http://matrix-matrixzulipbridge:{{ matrix_matrixzulipbridge_container_http_port }}
   as_token: "{{ matrix_matrixzulipbridge_appservice_token }}"
   hs_token: "{{ matrix_matrixzulipbridge_homeserver_token }}"
   rate_limited: false
-  sender_localpart: matrixzulipbridge
+  sender_localpart: zulipbridge
   namespaces:
     users:
-      - regex: '@hbirc_.*'
+      - regex: '@zulip_.*'
         exclusive: true
     aliases: []
     rooms: []