diff --git a/ai-hub/app/api/routes/tts.py b/ai-hub/app/api/routes/tts.py
index a53069f..04af388 100644
--- a/ai-hub/app/api/routes/tts.py
+++ b/ai-hub/app/api/routes/tts.py
@@ -1,3 +1,4 @@
+import logging
 from fastapi import APIRouter, HTTPException, Query, Response, Depends
 from fastapi.responses import StreamingResponse
 from typing import AsyncGenerator
@@ -6,6 +7,8 @@
 from app.api.routes.user import get_current_user_id
 from app.api import schemas
 
+logger = logging.getLogger(__name__)
+
 def create_tts_router(services: ServiceContainer) -> APIRouter:
     router = APIRouter(prefix="/speech", tags=["TTS"])