diff --git a/libavformat/avienc.c b/libavformat/avienc.c
index 702140d099..a74a360a0d 100644
--- a/libavformat/avienc.c
+++ b/libavformat/avienc.c
@@ -106,6 +106,7 @@ const CodecTag codec_bmp_tags[] = {
     { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
     { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
     { CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') },
+    { CODEC_ID_MPEG4, MKTAG('S', 'E', 'D', 'G') },
 
     { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
     { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },