diff --git a/maloja/database/sqldb.py b/maloja/database/sqldb.py
index bdc73f4..a51c3e7 100644
--- a/maloja/database/sqldb.py
+++ b/maloja/database/sqldb.py
@@ -1705,6 +1705,11 @@ def clean_db(dbconn=None):
 		log(f"Database Cleanup...")
 
 		to_delete = [
+			# NULL associations
+			"from albumartists where album_id is NULL",
+			"from albumartists where artist_id is NULL",
+			"from trackartists where track_id is NULL",
+			"from trackartists where artist_id is NULL",
 			# tracks with no scrobbles (trackartist entries first)
 			"from trackartists where track_id in (select id from tracks where id not in (select track_id from scrobbles))",
 			"from tracks where id not in (select track_id from scrobbles)",