diff --git a/api.py b/api.py
index 8733545..2df0632 100644
--- a/api.py
+++ b/api.py
@@ -195,7 +195,6 @@ async def download_chunk(file_id: str, idx: int, request: Request, username: str
              file_id, idx, rec["chunk_count"])
     return FileResponse(
         chunk_path,
-        filename=rec["file_name"],
         media_type="application/octet-stream",
         headers=_enc_headers(rec),
     )