diff --git a/NeMoOnnxSharp.Example/Program.cs b/NeMoOnnxSharp.Example/Program.cs
index bfb4de3..037a1c3 100644
--- a/NeMoOnnxSharp.Example/Program.cs
+++ b/NeMoOnnxSharp.Example/Program.cs
@@ -97,7 +97,8 @@ static async Task SpeakAsync()
                 {
                     modelPath = specGenModelPath,
                     phonemeDictPath = phonemeDict,
-                    heteronymsPath = heteronyms
+                    heteronymsPath = heteronyms,
+                    textTokenizer = "EnglishPhonemesTokenizer"
                 },
                 vocoder = new VocoderConfig
                 {