1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py
index 54c25e3557..242abc77c0 100644
--- a/synapse/handlers/room_member.py
+++ b/synapse/handlers/room_member.py
@@ -1064,7 +1064,7 @@ class RoomMemberHandler(metaclass=abc.ABCMeta):
 
 
 class RoomMemberMasterHandler(RoomMemberHandler):
-    def __init__(self, hs):
+    def __init__(self, hs: "HomeServer"):
         super().__init__(hs)
 
         self.distributor = hs.get_distributor()