diff --git a/synapse/rest/client/v2_alpha/groups.py b/synapse/rest/client/v2_alpha/groups.py
index 67f163e812..089ec71c81 100644
--- a/synapse/rest/client/v2_alpha/groups.py
+++ b/synapse/rest/client/v2_alpha/groups.py
@@ -740,6 +740,7 @@ def register_servlets(hs, http_server):
     GroupRoomServlet(hs).register(http_server)
     GroupCreateServlet(hs).register(http_server)
     GroupAdminRoomsServlet(hs).register(http_server)
+    GroupAdminRoomsConfigServlet(hs).register(http_server)
     GroupAdminUsersInviteServlet(hs).register(http_server)
     GroupAdminUsersKickServlet(hs).register(http_server)
     GroupSelfLeaveServlet(hs).register(http_server)