diff --git a/backend/src/routers/signvideo.py b/backend/src/routers/signvideo.py
index 8cf6849..c38a6f5 100644
--- a/backend/src/routers/signvideo.py
+++ b/backend/src/routers/signvideo.py
@@ -43,6 +43,9 @@ def convert_video(video_filename):
     # delete the temporary file
     os.remove(settings.DATA_PATH + "/" + video_filename + ".test")
 
+    # create the thumbnail
+    extract_thumbnail(settings.DATA_PATH + "/" + video_filename)
+
 
 # endpoint to upload a file and save it in the data folder
 @router.post("/", status_code=status.HTTP_201_CREATED, response_model=SignVideoOut)