diff --git a/VoiceTextWebAPI.Client/Format.cs b/VoiceTextWebAPI.Client/Format.cs
index b84342a..f81b492 100644
--- a/VoiceTextWebAPI.Client/Format.cs
+++ b/VoiceTextWebAPI.Client/Format.cs
@@ -10,7 +10,6 @@ public enum Format
     {
         WAV,
         OGG,
-        AAC,
         MP3
     }
 }