diff --git a/docs/book.toml b/docs/book.toml
index 15e81fa..aebc721 100644
--- a/docs/book.toml
+++ b/docs/book.toml
@@ -4,3 +4,5 @@ language = "cn"
 multilingual = false
 src = "src"
 title = "简明 zCore 教程"
+[output.html.playpen]
+editable = true