diff --git a/demos/text_to_speech/README.md b/demos/text_to_speech/README.md
index 518f9adcecd5db490d0ac56f0a6fd4568b88d3c7..2474a9005d136030ea34a492383cc9a7a6eec201 100644
--- a/demos/text_to_speech/README.md
+++ b/demos/text_to_speech/README.md
@@ -1,5 +1,5 @@
 
-# TTS(Text To Speech)
+# TTS (Text To Speech)
 
 ## Introduction
 Text-to-speech (TTS) is a natural language modeling process that requires changing units of text into units of speech for audio presentation.