1 files changed, 3 insertions, 3 deletions
diff --git a/synapse/replication/tcp/commands.py b/synapse/replication/tcp/commands.py
index 505d450e19..1311b013da 100644
--- a/synapse/replication/tcp/commands.py
+++ b/synapse/replication/tcp/commands.py
@@ -34,7 +34,7 @@ class Command(metaclass=abc.ABCMeta):
     A full command line on the wire is constructed from `NAME + " " + to_line()`
     """
 
-    NAME = None  # type: str
+    NAME: str
 
     @classmethod
     @abc.abstractmethod
@@ -380,7 +380,7 @@ class RemoteServerUpCommand(_SimpleCommand):
     NAME = "REMOTE_SERVER_UP"
 
 
-_COMMANDS = (
+_COMMANDS: Tuple[Type[Command], ...] = (
     ServerCommand,
     RdataCommand,
     PositionCommand,
@@ -393,7 +393,7 @@ _COMMANDS = (
     UserIpCommand,
     RemoteServerUpCommand,
     ClearUserSyncsCommand,
-)  # type: Tuple[Type[Command], ...]
+)
 
 # Map of command name to command type.
 COMMAND_MAP = {cmd.NAME: cmd for cmd in _COMMANDS}