sql syntax error

livestreams.py

@@ -2,11 +2,7 @@ from server import *
 
 @sched_func(30)
 def livestream_thumbnail():
-	livestreams = query('''SELECT streams.lecture_id
-			FROM streams
-			JOIN lectures ON lectures.id = streams.lecture_id
-			WHERE streams.active)
-			''')
+	livestreams = query('SELECT streams.lecture_id FROM streams WHERE streams.active')
 
 	for v in genlive(livestreams):
 		sorter.schedule_thumbnail(v['lecture_id'], v['path'])