1 files changed, 2 insertions, 1 deletions
diff --git a/synapse/rest/client/groups.py b/synapse/rest/client/groups.py
index 6285680c00..c3667ff8aa 100644
--- a/synapse/rest/client/groups.py
+++ b/synapse/rest/client/groups.py
@@ -26,6 +26,7 @@ from synapse.api.constants import (
 )
 from synapse.api.errors import Codes, SynapseError
 from synapse.handlers.groups_local import GroupsLocalHandler
+from synapse.http.server import HttpServer
 from synapse.http.servlet import (
     RestServlet,
     assert_params_in_dict,
@@ -930,7 +931,7 @@ class GroupsForUserServlet(RestServlet):
         return 200, result
 
 
-def register_servlets(hs: "HomeServer", http_server):
+def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None:
     GroupServlet(hs).register(http_server)
     GroupSummaryServlet(hs).register(http_server)
     GroupInvitedUsersServlet(hs).register(http_server)