diff --git a/starrail_damage_cal/mihomo/requests.py b/starrail_damage_cal/mihomo/requests.py
index 41d08ce..33c4e8f 100644
--- a/starrail_damage_cal/mihomo/requests.py
+++ b/starrail_damage_cal/mihomo/requests.py
@@ -21,7 +21,8 @@ async def get_char_card_info(
     ) as client:
         req = await client.get(f"/sr_info/{uid}")
         if save_path:
-            save_path.mkdir(parents=True, exist_ok=True)
-            with Path.open(save_path / uid / f"{uid!s}.json", "w") as file:
+            path = save_path / str(uid)
+            path.mkdir(parents=True, exist_ok=True)
+            with Path.open(path / f"{uid!s}.json", "w") as file:
                 file.write(req.text)
         return convert(req.json(), type=MihomoData)