diff --git a/src/doc/rustc-dev-guide/book.toml b/src/doc/rustc-dev-guide/book.toml
index 3c4c537e8b32..f3a192c67844 100644
--- a/src/doc/rustc-dev-guide/book.toml
+++ b/src/doc/rustc-dev-guide/book.toml
@@ -6,3 +6,5 @@ description = "A guide to developing rustc "
 [output.html]
 
 [output.linkcheck]
+
+[output.html.search]
diff --git a/src/doc/rustc-dev-guide/ci/install.sh b/src/doc/rustc-dev-guide/ci/install.sh
index 0a36ff1f9e6f..975857a95a08 100644
--- a/src/doc/rustc-dev-guide/ci/install.sh
+++ b/src/doc/rustc-dev-guide/ci/install.sh
@@ -20,4 +20,4 @@ function cargo_install() {
 }
 
 cargo_install mdbook 0.1.5
-cargo_install mdbook-linkcheck 0.1.0
+cargo_install mdbook-linkcheck 0.1.2