diff --git a/libavformat/metadata.h b/libavformat/metadata.h
index 88c9c86626..b6912efc5f 100644
--- a/libavformat/metadata.h
+++ b/libavformat/metadata.h
@@ -37,7 +37,7 @@ struct AVMetadata{
 
 #if LIBAVFORMAT_VERSION_MAJOR < 53
 void ff_metadata_demux_compat(AVFormatContext *s);
-void ff_metadata_sync_compat(AVFormatContext *s);
+void ff_metadata_mux_compat(AVFormatContext *s);
 #endif
 
 #endif /* AVFORMAT_METADATA_H */
diff --git a/libavformat/metadata_compat.c b/libavformat/metadata_compat.c
index ab03826d53..7aef9389ab 100644
--- a/libavformat/metadata_compat.c
+++ b/libavformat/metadata_compat.c
@@ -114,7 +114,7 @@ void ff_metadata_demux_compat(AVFormatContext *ctx)
     snprintf(number, sizeof(number), "%d", s->key);                           \
     if(s->key)  FILL_METADATA(s, key, number) }
 
-void ff_metadata_sync_compat(AVFormatContext *ctx)
+void ff_metadata_mux_compat(AVFormatContext *ctx)
 {
     int i;
 
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 3f26aee991..0afc63bb94 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -2502,7 +2502,7 @@ int av_write_header(AVFormatContext *s)
     }
 
 #if LIBAVFORMAT_VERSION_MAJOR < 53
-    ff_metadata_sync_compat(s);
+    ff_metadata_mux_compat(s);
 #endif
 
     if(s->oformat->write_header){