diff --git a/Astrocore.Api/Controllers/TextToSpeechController.cs b/Astrocore.Api/Controllers/TextToSpeechController.cs
index 43e3d0b..382efbf 100644
--- a/Astrocore.Api/Controllers/TextToSpeechController.cs
+++ b/Astrocore.Api/Controllers/TextToSpeechController.cs
@@ -62,7 +62,7 @@ namespace Astrocore.Api.Controllers
             }
 
             var dfpwmBytes = await System.IO.File.ReadAllBytesAsync(dfpwmPath);
-            return File(dfpwmBytes, "application/octet-stream", "tts.dfpwm");
+            return File(dfpwmBytes, "application/octet-stream", $"{fileNameGuid}.dfpwm");
         }
     }
 }