diff --git a/api/kiwi_vpn_api/config.py b/api/kiwi_vpn_api/config.py
index f577172..2ba228a 100644
--- a/api/kiwi_vpn_api/config.py
+++ b/api/kiwi_vpn_api/config.py
@@ -29,6 +29,7 @@ class Settings(BaseSettings):
 
     production_mode: bool = False
     data_dir: Path = Path("./tmp")
+    config_file_name: Path = Path("config.json")
     api_v1_prefix: str = "api/v1"
     openapi_url: str = "/openapi.json"
     docs_url: str | None = "/docs"
@@ -42,7 +43,7 @@ class Settings(BaseSettings):
 
     @property
     def config_file(self) -> Path:
-        return self.data_dir.joinpath("config.json")
+        return self.data_dir.joinpath(self.config_file_name)
 
 
 class DBType(Enum):
diff --git a/api/kiwi_vpn_api/db/connection.py b/api/kiwi_vpn_api/db/connection.py
index ed5d4c2..5826daf 100644
--- a/api/kiwi_vpn_api/db/connection.py
+++ b/api/kiwi_vpn_api/db/connection.py
@@ -1,5 +1,5 @@
 """
-Database connection management
+Database connection management.
 """
 
 from sqlmodel import Session, SQLModel, create_engine