diff --git a/libavformat/mp3dec.c b/libavformat/mp3dec.c
index 57e4ba33b1..d599c9c489 100644
--- a/libavformat/mp3dec.c
+++ b/libavformat/mp3dec.c
@@ -40,7 +40,7 @@ typedef struct {
     int xing_toc;
     int start_pad;
     int end_pad;
-} MP3Context;
+} MP3DecContext;
 
 /* mp3 read */
 
@@ -89,7 +89,7 @@ static int mp3_read_probe(AVProbeData *p)
 static void read_xing_toc(AVFormatContext *s, int64_t filesize, int64_t duration)
 {
     int i;
-    MP3Context *mp3 = s->priv_data;
+    MP3DecContext *mp3 = s->priv_data;
 
     if (!filesize &&
         !(filesize = avio_size(s->pb))) {
@@ -113,7 +113,7 @@ static void read_xing_toc(AVFormatContext *s, int64_t filesize, int64_t duration
  */
 static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
 {
-    MP3Context *mp3 = s->priv_data;
+    MP3DecContext *mp3 = s->priv_data;
     uint32_t v, spf;
     unsigned frames = 0; /* Total number of frames in file */
     unsigned size = 0; /* Total number of bytes in the stream */
@@ -190,7 +190,7 @@ static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
 
 static int mp3_read_header(AVFormatContext *s)
 {
-    MP3Context *mp3 = s->priv_data;
+    MP3DecContext *mp3 = s->priv_data;
     AVStream *st;
     int64_t off;
 
@@ -226,7 +226,7 @@ static int mp3_read_header(AVFormatContext *s)
 
 static int mp3_read_packet(AVFormatContext *s, AVPacket *pkt)
 {
-    MP3Context *mp3 = s->priv_data;
+    MP3DecContext *mp3 = s->priv_data;
     int ret, size;
     int64_t pos;
 
@@ -273,7 +273,7 @@ static int check(AVFormatContext *s, int64_t pos)
 static int mp3_seek(AVFormatContext *s, int stream_index, int64_t timestamp,
                     int flags)
 {
-    MP3Context *mp3 = s->priv_data;
+    MP3DecContext *mp3 = s->priv_data;
     AVIndexEntry *ie;
     AVStream *st = s->streams[0];
     int64_t ret  = av_index_search_timestamp(st, timestamp, flags);
@@ -319,11 +319,11 @@ static int mp3_seek(AVFormatContext *s, int stream_index, int64_t timestamp,
 AVInputFormat ff_mp3_demuxer = {
     .name           = "mp3",
     .long_name      = NULL_IF_CONFIG_SMALL("MP2/3 (MPEG audio layer 2/3)"),
-    .priv_data_size = sizeof(MP3Context),
     .read_probe     = mp3_read_probe,
     .read_header    = mp3_read_header,
     .read_packet    = mp3_read_packet,
     .read_seek      = mp3_seek,
+    .priv_data_size = sizeof(MP3DecContext),
     .flags          = AVFMT_GENERIC_INDEX,
     .extensions     = "mp2,mp3,m2a", /* XXX: use probe */
 };