diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py
index 41adaf3bf3..a1a8fa1d3b 100644
--- a/synapse/handlers/room_member.py
+++ b/synapse/handlers/room_member.py
@@ -109,7 +109,7 @@ class RoomMemberHandler(object):
txn_id: Optional[str],
requester: Requester,
content: JsonDict,
- ) -> Tuple[Optional[str], int]:
+ ) -> Tuple[str, int]:
"""
Rejects an out-of-band invite we have received from a remote server
@@ -268,7 +268,7 @@ class RoomMemberHandler(object):
ratelimit: bool = True,
content: Optional[dict] = None,
require_consent: bool = True,
- ) -> Tuple[Optional[str], int]:
+ ) -> Tuple[str, int]:
key = (room_id,)
with (await self.member_linearizer.queue(key)):
@@ -299,7 +299,7 @@ class RoomMemberHandler(object):
ratelimit: bool = True,
content: Optional[dict] = None,
require_consent: bool = True,
- ) -> Tuple[Optional[str], int]:
+ ) -> Tuple[str, int]:
content_specified = bool(content)
if content is None:
content = {}
@@ -1006,7 +1006,7 @@ class RoomMemberMasterHandler(RoomMemberHandler):
txn_id: Optional[str],
requester: Requester,
content: JsonDict,
- ) -> Tuple[Optional[str], int]:
+ ) -> Tuple[str, int]:
"""
Rejects an out-of-band invite received from a remote user
diff --git a/synapse/handlers/room_member_worker.py b/synapse/handlers/room_member_worker.py
index ac03f15166..897338fd54 100644
--- a/synapse/handlers/room_member_worker.py
+++ b/synapse/handlers/room_member_worker.py
@@ -67,7 +67,7 @@ class RoomMemberWorkerHandler(RoomMemberHandler):
txn_id: Optional[str],
requester: Requester,
content: dict,
- ) -> Tuple[Optional[str], int]:
+ ) -> Tuple[str, int]:
"""
Rejects an out-of-band invite received from a remote user
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