diff --git a/autoytarchive/workers.py b/autoytarchive/workers.py
index 16c4b0a..eb892cd 100644
--- a/autoytarchive/workers.py
+++ b/autoytarchive/workers.py
@@ -165,7 +165,7 @@ async def _video_worker():
                 command.extend(('-c', 'copy', video_filename))
                 return command
             video_filename = os.path.join(tempdir, video_json['id'] + '.mkv')
-            with open(video_json['id'] + '.mkv', 'ab') as log_file:
+            with open(video_json['id'] + '.log', 'ab') as log_file:
                 async def auto_kill(proc):
                     last_tell = log_file.tell()
                     while True: