diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
index 7a4746b1e981931dfa415fb1de68d855d0488b4c..b5a88d7218c6c40003e67312931b2723e2f34d06 100644
--- a/libavformat/mxfenc.c
+++ b/libavformat/mxfenc.c
@@ -1400,7 +1400,8 @@ AVOutputFormat mxf_muxer = {
     mxf_write_header,
     mxf_write_packet,
     mxf_write_footer,
-    0,
+    AVFMT_NOTIMESTAMPS,
     NULL,
     mxf_interleave,
+
 };