diff --git a/gst-libs/gst/codecparsers/gstmpegvideoparser.c b/gst-libs/gst/codecparsers/gstmpegvideoparser.c
index 25763e8057..03494a3520 100644
--- a/gst-libs/gst/codecparsers/gstmpegvideoparser.c
+++ b/gst-libs/gst/codecparsers/gstmpegvideoparser.c
@@ -617,7 +617,7 @@ gst_mpeg_video_parse_picture_extension (GstMpegVideoPictureExt * ext,
 
   size -= offset;
 
-  if (size < 4)
+  if (size < 5)
     return FALSE;
 
   gst_bit_reader_init (&br, &data[offset], size);