diff --git a/main.go b/main.go
index 5952088..7dff4e8 100644
--- a/main.go
+++ b/main.go
@@ -754,6 +754,11 @@ func writeM4a(w *mp4.Writer, info *SongInfo, meta *AutoGenerated, data []byte, t
 						return err
 					}
 
+					err = addExtendedMeta("RELEASETIME", meta.Data[0].Relationships.Tracks.Data[index].Attributes.ReleaseDate)
+					if err != nil {
+						return err
+					}
+
 					cnID, err := strconv.ParseUint(meta.Data[0].Relationships.Tracks.Data[index].ID, 10, 32)
 					if err != nil {
 						return err