diff --git a/book.toml b/book.toml
index 7c2f43d..5276552 100644
--- a/book.toml
+++ b/book.toml
@@ -1,7 +1,6 @@
 [book]
 authors = ["Soares Chen"]
 language = "en"
-multilingual = false
 src = "content"
 title = "Context-Generic Programming Patterns (DRAFT)"