diff --git a/mime/mime.go b/mime/mime.go
index bad4d30..a429dab 100644
--- a/mime/mime.go
+++ b/mime/mime.go
@@ -6,4 +6,5 @@ var Types = map[string]string{
 	"aac":  "audio/x-aac",
 	"m4a":  "audio/m4a",
 	"ogg":  "audio/ogg",
+	"opus":  "audio/ogg",
 }