diff --git a/first-edition/book.toml b/first-edition/book.toml
index f3ae80a39..3a3189c4d 100644
--- a/first-edition/book.toml
+++ b/first-edition/book.toml
@@ -1,2 +1,3 @@
+[book]
 title = "The Rust Programming Language"
 author = "The Rust Project Developers"
diff --git a/second-edition/book.toml b/second-edition/book.toml
index fef7c0614..9789a435c 100644
--- a/second-edition/book.toml
+++ b/second-edition/book.toml
@@ -1,2 +1,3 @@
+[book]
 title = "The Rust Programming Language"
 author = "Steve Klabnik and Carol Nichols, with Contributions from the Rust Community"