1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/storage/databases/main/devices.py b/synapse/storage/databases/main/devices.py
index adde5d0978..7a6ed332aa 100644
--- a/synapse/storage/databases/main/devices.py
+++ b/synapse/storage/databases/main/devices.py
@@ -669,7 +669,7 @@ class DeviceWorkerStore(EndToEndKeyWorkerStore):
 
     @trace
     async def get_user_devices_from_cache(
-        self, query_list: List[Tuple[str, str]]
+        self, query_list: List[Tuple[str, Optional[str]]]
     ) -> Tuple[Set[str], Dict[str, Dict[str, JsonDict]]]:
         """Get the devices (and keys if any) for remote users from the cache.