diff --git a/frontend/app.py b/frontend/app.py
index a923fc7..aa8ab60 100644
--- a/frontend/app.py
+++ b/frontend/app.py
@@ -302,7 +302,7 @@ async def session_analyze(
     backend_filename = f"{session_id}/in/{filename}" if session_id else filename
 
     try:
-        analysis = api.analyze(vmid=vmid, filename=backend_filename)
+        analysis = api.analyze(vmid=0, filename=backend_filename)
     except ApiError as exc:
         return JSONResponse({"phase": "error", "error": f"Backend analysis failed: {exc.detail}"}, status_code=502)