# Contributing to rustc
We'd love to have your help improving `rustc`! To that end, we've written [a
-whole book](https://rust-lang.github.io/rustc-guide/) on its
+whole book][rustc_guide] on its
internals, how it works, and how to get started working on it. To learn
more, you'll want to check that out.
+
+If you would like to contribute to _this_ book, you can find its source in the
+rustc source at [src/doc/rustc][rustc_book].
+
+[rustc_guide]: https://rust-lang.github.io/rustc-guide/
+[rustc_book]: https://github.com/rust-lang/rust/tree/master/src/doc/rustc