diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index 435469de32..c8e56607ef 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -1536,7 +1536,7 @@ static int mpegts_read_header(AVFormatContext *s,
     int len;
     int64_t pos;
 
-    /* read the first 1024 bytes to get packet size */
+    /* read the first 8192 bytes to get packet size */
     pos = avio_tell(pb);
     len = avio_read(pb, buf, sizeof(buf));
     if (len != sizeof(buf))