diff --git a/ffplayout.conf b/ffplayout.conf
index 09e5c02b..aeb0b5a9 100644
--- a/ffplayout.conf
+++ b/ffplayout.conf
@@ -88,10 +88,12 @@ live_protocols = ["http", "https", "ftp", "rtmp", "rtmpe", "rtmps", "rtp", "rtsp
 ; "/playlists/2018/01" (/playlists/year/month)
 ; day_start means at which time the playlist should start
 ; leave day_start blank when playlist should always start at the begin
+; length represent the target length from playlist, when is blank real length will not consider
 [PLAYLIST]
 playlist_mode = True
 path = /playlists
 day_start = 05:59:25.000
+length = 24:00:00
 
 
 ; play ordered or ramdomly files from path