diff --git a/autoytarchive/workers.py b/autoytarchive/workers.py
index e39f5c0..dc82066 100644
--- a/autoytarchive/workers.py
+++ b/autoytarchive/workers.py
@@ -78,9 +78,11 @@ async def _check_video(video):
         if error_message:
             error_message = error_message[7:]
             if error_message.startswith('AUTOYTARCHIVE:'):
-                new_wait_time = int(error_message.split(':', 1)[1].split(' ', 1)[0]) - int(time.time())
-                if new_wait_time > 0:
-                    wait_time = new_wait_time
+                tmp = error_message.split(':', 1)[1].split(' ', 1)[0]
+                if tmp.isnumeric():
+                    new_wait_time = int(tmp) - int(time.time())
+                    if new_wait_time > 0:
+                        wait_time = new_wait_time
             logging.error('Error on video %s: %s', video['yt_videoid'], error_message)
         else:
             logging.error('Video %s returned status code %s\n%s', video['yt_videoid'], proc.returncode, (stderr + stdout).decode())