1 files changed, 7 insertions, 1 deletions
diff --git a/synapse/storage/databases/main/user_directory.py b/synapse/storage/databases/main/user_directory.py
index 3a1fe3ed52..63f88eac51 100644
--- a/synapse/storage/databases/main/user_directory.py
+++ b/synapse/storage/databases/main/user_directory.py
@@ -707,7 +707,13 @@ class UserDirectoryStore(UserDirectoryBackgroundUpdateStore):
 
         return {row["room_id"] for row in rows}
 
-    async def get_user_directory_stream_pos(self) -> int:
+    async def get_user_directory_stream_pos(self) -> Optional[int]:
+        """
+        Get the stream ID of the user directory stream.
+
+        Returns:
+            The stream token or None if the initial background update hasn't happened yet.
+        """
         return await self.db_pool.simple_select_one_onecol(
             table="user_directory_stream_pos",
             keyvalues={},