diff --git a/routers/exam/templates.py b/routers/exam/templates.py
index ab93f2f..4bb2171 100644
--- a/routers/exam/templates.py
+++ b/routers/exam/templates.py
@@ -686,7 +686,7 @@ async def get_template_source_pdf(
     return Response(content=pdf_bytes, media_type="application/pdf")
 
 
-@router.post("/templates/{template_id}/auto-map")
+@router.post("/templates/{template_id}/auto-map", response_model=None)
 async def auto_map_template(
     template_id: str,
     background_tasks: BackgroundTasks,