diff --git a/core/fetchers/http_fetcher.py b/core/fetchers/http_fetcher.py
index 7693765..c8b4025 100644
--- a/core/fetchers/http_fetcher.py
+++ b/core/fetchers/http_fetcher.py
@@ -110,7 +110,9 @@ async def download(self, item: str, root_dir: str, override_exist: bool):
             shutil.copy2(cache, file_path)
             skip_download = True
 
-        header = await self._send_head_request(item)
+        header = {}
+        if not skip_download:
+            header = await self._send_head_request(item)
         partial = _check_range_supported(header)
         size = _get_content_length(header)