diff --git a/macao/hugo.toml b/macao/hugo.toml
index b6cd3e36969b00a19a9b3de4f015ab415ade7bd0..7d2cb98ccee9a4dc8d11631525cc0bfdc8137246 100644
--- a/macao/hugo.toml
+++ b/macao/hugo.toml
@@ -27,7 +27,7 @@ BookTheme = 'auto'
 # (Optional, default true) Controls table of contents visibility on right side of pages.
 # Start and end levels can be controlled with markup.tableOfContents setting.
 # You can also specify this parameter per page in front matter.
-BookToC = true
+BookToC = false
 
 # (Optional, default favicon.png) Set the path to a favicon file.
 # If the favicon is /static/favicon.png then the path would be favicon.png