diff --git a/backend/src/routers/signvideo.py b/backend/src/routers/signvideo.py
index da390aa..e76ae9e 100644
--- a/backend/src/routers/signvideo.py
+++ b/backend/src/routers/signvideo.py
@@ -70,7 +70,7 @@ async def sign_video(
 
     return sign_video
 
-@router.get("/{video_id}/thumbnail", status_code=status.HTTP_200_OK)
+@router.get("/{video_id}/thumbnail/", status_code=status.HTTP_200_OK)
 async def sign_video_thumbnail(
     sign_id: int,
     video_id: int,