diff --git a/libavformat/yuv4mpegdec.c b/libavformat/yuv4mpegdec.c
index b24275acc1..c0972af7de 100644
--- a/libavformat/yuv4mpegdec.c
+++ b/libavformat/yuv4mpegdec.c
@@ -27,7 +27,7 @@
 #include "yuv4mpeg.h"
 
 /* Header size increased to allow room for optional flags */
-#define MAX_YUV4_HEADER 96
+#define MAX_YUV4_HEADER 128
 #define MAX_FRAME_HEADER 80
 
 static int yuv4_read_header(AVFormatContext *s)