diff --git a/book.toml b/book.toml
index b2c0d11..f51dfa3 100644
--- a/book.toml
+++ b/book.toml
@@ -1,5 +1,5 @@
 [book]
-author = "The Rust Project Developers"
+authors = ["The Rust Project Developers"]
 title = "The Rustonomicon"
 description = "The Dark Arts of Advanced and Unsafe Rust Programming"