diff --git a/etc/codecs.conf b/etc/codecs.conf
index c56321a401..5f3d13dff2 100644
--- a/etc/codecs.conf
+++ b/etc/codecs.conf
@@ -1095,6 +1095,7 @@ videocodec ffmjpeg
   fourcc MJLS       ; JPEG-LS custom FOURCC for avi - encoder
   fourcc MMJP,QIVG
   fourcc ACDV       ; ACDSee jpeg
+  fourcc SLMJ       ; SL M-JPEG
   driver ffmpeg
   dll mjpeg
   out 444P