diff --git a/book/book.toml b/book/book.toml
index d0d40059..30e9a663 100644
--- a/book/book.toml
+++ b/book/book.toml
@@ -1,14 +1,11 @@
 [book]
 authors = ["Nicolas Racchi"]
 language = "en"
-multilingual = false
 src = "src"
 title = "The MSG-RS Book"
 
 [preprocessor.mermaid]
 command = "mdbook-mermaid"
 
-[preprocessor.template]
-
 [output.html]
 additional-js = ["mermaid.min.js", "mermaid-init.js"]