diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c
index 2aa9698651..393b779168 100644
--- a/libavformat/mpegtsenc.c
+++ b/libavformat/mpegtsenc.c
@@ -53,6 +53,7 @@ typedef struct MpegTSService {
 } MpegTSService;
 
 typedef struct MpegTSWrite {
+    const AVClass *av_class;
     MpegTSSection pat; /* MPEG2 pat table */
     MpegTSSection sdt; /* MPEG2 sdt table context */
     MpegTSService **services;