diff --git a/VoiceTextWebAPI.Client/Format.cs b/VoiceTextWebAPI.Client/Format.cs
index 1602f38..b84342a 100644
--- a/VoiceTextWebAPI.Client/Format.cs
+++ b/VoiceTextWebAPI.Client/Format.cs
@@ -10,6 +10,7 @@ public enum Format
     {
         WAV,
         OGG,
-        AAC
+        AAC,
+        MP3
     }
 }