diff --git a/backend/main.py b/backend/main.py
index 2d360f7..b5a7b88 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -687,13 +687,9 @@ async def traiter_message_ws(msg: dict, ws: WebSocket):
         await ws.send_json({"type": "pong"})
     elif type_msg == "preview_start":
         global _preview_actif
-        loop = asyncio.get_event_loop()
-        await loop.run_in_executor(None, camera.activer_viewfinder)
         _preview_actif = True
     elif type_msg == "preview_stop":
         _preview_actif = False
-        loop = asyncio.get_event_loop()
-        asyncio.ensure_future(loop.run_in_executor(None, camera.desactiver_viewfinder))
 
 
 async def diffuser_ws(message: dict):