diff --git a/paddlespeech/t2s/frontend/zh_normalization/text_normlization.py b/paddlespeech/t2s/frontend/zh_normalization/text_normlization.py
index d83e8a4dd..9ca28f5f7 100644
--- a/paddlespeech/t2s/frontend/zh_normalization/text_normlization.py
+++ b/paddlespeech/t2s/frontend/zh_normalization/text_normlization.py
@@ -73,7 +73,7 @@ class TextNormalizer():
 
     def _post_replace(self, sentence: str) -> str:
         sentence = sentence.replace('/', '每')
-        sentence = sentence.replace('~', '至').replace('～','至')
+        sentence = sentence.replace('~', '至').replace('～', '至')
 
 
         return sentence