diff --git a/libavformat/aiff.c b/libavformat/aiff.c
index d05a366e61..6de82872c7 100644
--- a/libavformat/aiff.c
+++ b/libavformat/aiff.c
@@ -417,6 +417,7 @@ AVInputFormat aiff_demuxer = {
     aiff_read_packet,
     aiff_read_close,
     aiff_read_seek,
+    .codec_tag= {codec_aiff_tags},
 };
 #endif
 
@@ -432,5 +433,6 @@ AVOutputFormat aiff_muxer = {
     aiff_write_header,
     aiff_write_packet,
     aiff_write_trailer,
+    .codec_tag= {codec_aiff_tags},
 };
 #endif
diff --git a/libavformat/au.c b/libavformat/au.c
index acc42b4022..0ec089b15a 100644
--- a/libavformat/au.c
+++ b/libavformat/au.c
@@ -190,6 +190,7 @@ AVInputFormat au_demuxer = {
     au_read_packet,
     au_read_close,
     pcm_read_seek,
+    .codec_tag= {codec_au_tags},
 };
 #endif
 
@@ -205,5 +206,6 @@ AVOutputFormat au_muxer = {
     au_write_header,
     au_write_packet,
     au_write_trailer,
+    .codec_tag= {codec_au_tags},
 };
 #endif //CONFIG_AU_MUXER
diff --git a/libavformat/flvenc.c b/libavformat/flvenc.c
index c8c527a8f9..1bc0f9f63b 100644
--- a/libavformat/flvenc.c
+++ b/libavformat/flvenc.c
@@ -332,4 +332,5 @@ AVOutputFormat flv_muxer = {
     flv_write_header,
     flv_write_packet,
     flv_write_trailer,
+    .codec_tag= {flv_video_codec_ids, flv_audio_codec_ids},
 };
diff --git a/libavformat/vocdec.c b/libavformat/vocdec.c
index 6a78692278..f13120ef11 100644
--- a/libavformat/vocdec.c
+++ b/libavformat/vocdec.c
@@ -152,4 +152,5 @@ AVInputFormat voc_demuxer = {
     voc_read_header,
     voc_read_packet,
     voc_read_close,
+    .codec_tag={voc_codec_tags},
 };
diff --git a/libavformat/vocenc.c b/libavformat/vocenc.c
index ed304883d1..5b6e3c1680 100644
--- a/libavformat/vocenc.c
+++ b/libavformat/vocenc.c
@@ -101,4 +101,5 @@ AVOutputFormat voc_muxer = {
     voc_write_header,
     voc_write_packet,
     voc_write_trailer,
+    .codec_tag={voc_codec_tags},
 };