diff --git a/backend/app/api/routes/auth.py b/backend/app/api/routes/auth.py
index 1155286..aa44603 100644
--- a/backend/app/api/routes/auth.py
+++ b/backend/app/api/routes/auth.py
@@ -90,7 +90,7 @@ async def google_login():
         raise HTTPException(status_code=501, detail="Google OAuth not configured.")
     params = {
         "client_id": settings.GOOGLE_CLIENT_ID,
-        "redirect_uri": f"{settings.FRONTEND_URL.rstrip('/')}/api/auth/google/callback",
+        "redirect_uri": settings.GOOGLE_REDIRECT_URI,
         "response_type": "code",
         "scope": "openid email profile",
         "access_type": "offline",
@@ -112,7 +112,7 @@ async def google_callback(code: str, response: Response, db: AsyncSession = Depe
                 "code": code,
                 "client_id": settings.GOOGLE_CLIENT_ID,
                 "client_secret": settings.GOOGLE_CLIENT_SECRET,
-                "redirect_uri": f"{settings.FRONTEND_URL.rstrip('/')}/api/auth/google/callback",
+                "redirect_uri": settings.GOOGLE_REDIRECT_URI,
                 "grant_type": "authorization_code",
             },
         )
diff --git a/backend/app/core/config.py b/backend/app/core/config.py
index a33d0c3..833a3a8 100644
--- a/backend/app/core/config.py
+++ b/backend/app/core/config.py
@@ -4,8 +4,10 @@ from pydantic_settings import BaseSettings
 class Settings(BaseSettings):
     SECRET_KEY: str = "change-me-in-production-use-a-long-random-string"
     DATABASE_URL: str = "sqlite+aiosqlite:///./velxio.db"
+    DATA_DIR: str = "."
     GOOGLE_CLIENT_ID: str = ""
     GOOGLE_CLIENT_SECRET: str = ""
+    GOOGLE_REDIRECT_URI: str = "http://localhost:8001/api/auth/google/callback"
     FRONTEND_URL: str = "http://localhost:5173"
     ACCESS_TOKEN_EXPIRE_MINUTES: int = 10080  # 7 days