diff --git a/maloja/apis/listenbrainz.py b/maloja/apis/listenbrainz.py
index 20400999..b1a27244 100644
--- a/maloja/apis/listenbrainz.py
+++ b/maloja/apis/listenbrainz.py
@@ -79,7 +79,7 @@ def submit(self,pathnodes,keys):
 					'track_title':titlestr,
 					'album_title':albumstr,
 					'scrobble_time':timestamp,
-					'track_length': additional.get("duration"),
+					'track_length': additional.get("duration_ms") or additional.get("duration"),
 					**extrafields
 				},client=client)