diff --git a/pkg/gotd/telegram/message/audio.go b/pkg/gotd/telegram/message/audio.go
index 2e634430..23156d36 100644
--- a/pkg/gotd/telegram/message/audio.go
+++ b/pkg/gotd/telegram/message/audio.go
@@ -41,6 +41,12 @@ func (u *AudioDocumentBuilder) Duration(duration time.Duration) *AudioDocumentBu
 	return u.DurationSeconds(int(duration.Seconds()))
 }
 
+// Filename sets filename of audio file.
+func (u *AudioDocumentBuilder) Filename(filename string) *AudioDocumentBuilder {
+	u.doc.Attributes(&tg.DocumentAttributeFilename{FileName: filename})
+	return u
+}
+
 // DurationSeconds sets duration in seconds.
 func (u *AudioDocumentBuilder) DurationSeconds(duration int) *AudioDocumentBuilder {
 	u.attr.Duration = duration