diff --git a/api/advent22_api/calendar_config.py b/api/advent22_api/calendar_config.py
index e496012..b1fec3b 100644
--- a/api/advent22_api/calendar_config.py
+++ b/api/advent22_api/calendar_config.py
@@ -4,9 +4,8 @@ from typing import TypeAlias
 import tomli_w
 from pydantic import BaseModel
 
-from .config import get_config
+from .config import Config, get_config
 from .dav_common import dav_get_textfile_content, dav_write_textfile_content
-from .settings import SETTINGS
 
 
 class DoorSaved(BaseModel):
@@ -41,9 +40,9 @@ async def get_calendar_config() -> CalendarConfig:
     return CalendarConfig.model_validate(tomllib.loads(txt))
 
 
-async def set_calendar_config(cal_cfg: CalendarConfig) -> None:
+async def set_calendar_config(cfg: Config, cal_cfg: CalendarConfig) -> None:
     await dav_write_textfile_content(
-        path=SETTINGS.config_filename,
+        path=f"files/{cfg.puzzle.calendar}",
         content=tomli_w.dumps(
             cal_cfg.model_dump(
                 exclude_defaults=True,
diff --git a/api/advent22_api/routers/general.py b/api/advent22_api/routers/general.py
index ff4eb0b..789a0b1 100644
--- a/api/advent22_api/routers/general.py
+++ b/api/advent22_api/routers/general.py
@@ -8,6 +8,7 @@ from ..calendar_config import (
     get_calendar_config,
     set_calendar_config,
 )
+from ..config import Config, get_config
 from ..dav_common import dav_get_file
 from ._misc import api_return_image
 
@@ -44,6 +45,7 @@ async def get_doors(
 @router.put("/doors")
 async def put_doors(
     doors: DoorsSaved,
+    cfg: Config = Depends(get_config),
     cal_cfg: CalendarConfig = Depends(get_calendar_config),
 ) -> None:
     """
@@ -54,4 +56,4 @@ async def put_doors(
         doors,
         key=lambda door: door.day,
     )
-    await set_calendar_config(cal_cfg)
+    await set_calendar_config(cfg, cal_cfg)