1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py
index 66e6305562..7c450ecad0 100644
--- a/synapse/federation/federation_client.py
+++ b/synapse/federation/federation_client.py
@@ -217,7 +217,7 @@ class FederationClient(FederationBase):
         )
 
     async def claim_client_keys(
-        self, destination: str, content: JsonDict, timeout: int
+        self, destination: str, content: JsonDict, timeout: Optional[int]
     ) -> JsonDict:
         """Claims one-time keys for a device hosted on a remote server.