diff --git a/src/routes/wallpaper.py b/src/routes/wallpaper.py
index 5ac0b4d..2618f92 100644
--- a/src/routes/wallpaper.py
+++ b/src/routes/wallpaper.py
@@ -65,7 +65,7 @@ async def wallpaper(request: Request, day):
     Returns:
         HTMLResponse: The wallpaper page or 404 error page.
     """
-    res = requests.get('https://api.starlio.space/wallpaper/{day}', timeout=3)
+    res = requests.get(f'https://api.starlio.space/wallpaper/{day}', timeout=3)
 
     if (HTTPStatus(res.status_code).is_server_error
             or HTTPStatus(res.status_code).is_client_error