diff --git a/zh-CN/book.toml b/zh-CN/book.toml
index 673fec44..42a8aaf2 100644
--- a/zh-CN/book.toml
+++ b/zh-CN/book.toml
@@ -6,7 +6,6 @@ language = "en"
 
 [output.html.playpen]
 editable = true
-editor = "ace"
 
 [output.html.fold]
 enable = true