diff --git a/src/doc/rustc-dev-guide/README.md b/src/doc/rustc-dev-guide/README.md
index a01758d48a8f..57b3a0ea4ab1 100644
--- a/src/doc/rustc-dev-guide/README.md
+++ b/src/doc/rustc-dev-guide/README.md
@@ -38,4 +38,4 @@ be found.
 > cargo install mdbook-linkcheck
 ```
 You will need `mdbook` version `>= 0.1`. `linkcheck` will be run automatically
-when you run `mdbook build`.
+when you run `mdbook build`. We are currently using `mdbook 0.2`.