diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
index 0f4155ab87fb02d66edc2cc226bf6bdd1c55fad9..3a3008b9d3a5a7f7fa9103846d1062fd5365acdc 100644
--- a/libavformat/mxfenc.c
+++ b/libavformat/mxfenc.c
@@ -1295,7 +1295,7 @@ static const UID mxf_mpeg2_codec_uls[] = {
 
 static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx)
 {
-    int long_gop = avctx->gop_size > 1 || avctx->has_b_frames;
+    int long_gop = 1;
 
     if (avctx->profile == 4) { // Main
         if (avctx->level == 8) // Main