diff --git a/libavformat/mp3enc.c b/libavformat/mp3enc.c
index 251f263e91..3a59efcd0f 100644
--- a/libavformat/mp3enc.c
+++ b/libavformat/mp3enc.c
@@ -255,32 +255,6 @@ static void mp3_xing_add_frame(MP3Context *mp3, AVPacket *pkt)
     }
 }
 
-static void mp3_update_xing(AVFormatContext *s)
-{
-    MP3Context  *mp3 = s->priv_data;
-    int i;
-
-    /* replace "Xing" identification string with "Info" for CBR files. */
-    if (!mp3->has_variable_bitrate) {
-        avio_seek(s->pb, mp3->xing_offset, SEEK_SET);
-        ffio_wfourcc(s->pb, "Info");
-    }
-
-    avio_seek(s->pb, mp3->xing_offset + 8, SEEK_SET);
-    avio_wb32(s->pb, mp3->frames);
-    avio_wb32(s->pb, mp3->size);
-
-    avio_w8(s->pb, 0);  // first toc entry has to be zero.
-
-    for (i = 1; i < XING_TOC_SIZE; ++i) {
-        int j = i * mp3->pos / XING_TOC_SIZE;
-        int seek_point = 256LL * mp3->bag[j] / mp3->size;
-        avio_w8(s->pb, FFMIN(seek_point, 255));
-    }
-
-    avio_seek(s->pb, 0, SEEK_END);
-}
-
 static int mp3_write_audio_packet(AVFormatContext *s, AVPacket *pkt)
 {
     MP3Context  *mp3 = s->priv_data;
@@ -341,6 +315,32 @@ static int mp3_queue_flush(AVFormatContext *s)
     return ret;
 }
 
+static void mp3_update_xing(AVFormatContext *s)
+{
+    MP3Context  *mp3 = s->priv_data;
+    int i;
+
+    /* replace "Xing" identification string with "Info" for CBR files. */
+    if (!mp3->has_variable_bitrate) {
+        avio_seek(s->pb, mp3->xing_offset, SEEK_SET);
+        ffio_wfourcc(s->pb, "Info");
+    }
+
+    avio_seek(s->pb, mp3->xing_offset + 8, SEEK_SET);
+    avio_wb32(s->pb, mp3->frames);
+    avio_wb32(s->pb, mp3->size);
+
+    avio_w8(s->pb, 0);  // first toc entry has to be zero.
+
+    for (i = 1; i < XING_TOC_SIZE; ++i) {
+        int j = i * mp3->pos / XING_TOC_SIZE;
+        int seek_point = 256LL * mp3->bag[j] / mp3->size;
+        avio_w8(s->pb, FFMIN(seek_point, 255));
+    }
+
+    avio_seek(s->pb, 0, SEEK_END);
+}
+
 static int mp2_write_trailer(struct AVFormatContext *s)
 {
     uint8_t buf[ID3v1_TAG_SIZE];