diff --git a/screencap/screencap-ffmpeg.sh b/screencap/screencap-ffmpeg.sh
index cef308215ddd7c4918f0bc949bddd1a30f5fee0e..48a2c766d604b93f0ffd56dd02de6f4e014b7966 100755
--- a/screencap/screencap-ffmpeg.sh
+++ b/screencap/screencap-ffmpeg.sh
@@ -70,7 +70,7 @@ fi
 
 if [ $CODEC = "qtrle" ]
 	then
-	videocmd="-c:v qtrle"
+	videocmd="-c:v qtrle -g 150 "
 elif [ $CODEC = "x264" ]
 	then
 	videocmd="-c:v libx264 $losslesscmd -pix_fmt yuv420p -preset:v ultrafast"