diff --git a/book.toml b/book.toml
index 96ba9ede..e7c28c9c 100644
--- a/book.toml
+++ b/book.toml
@@ -5,8 +5,6 @@ authors = ["Taylor Cramer"]
 [build]
 create-missing = false
 
-[preprocess.links]
-
 [output.html]
 git-repository-url = "https://github.com/rust-lang/async-book"
 site-url = "/async-book/"