diff --git a/README.md b/README.md
index f7e74f1..c2355fd 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ If you would like to see this version rendered, it’s [on GitHub pages][html].
 
 ## Requirements
 
-Building the book requires [mdBook]. To get it:
+Building the book requires [mdBook] >= v0.0.13. To get it:
 
 [mdBook]: https://github.com/azerupi/mdBook
 
diff --git a/src/ch04-01-ownership.md b/src/ch04-01-ownership.md
index 9f49a3e..d6d8cb5 100644
--- a/src/ch04-01-ownership.md
+++ b/src/ch04-01-ownership.md
@@ -263,7 +263,7 @@ copying can be assumed to be inexpensive.
 
 But what if we _do_ want to deeply copy the `String`’s data and not just the
 `String` itself? There’s a common method for that: `clone()`. We will discuss
-methods in the section on [structs], but they’re a common enough feature
+methods in the section on [`structs`], but they’re a common enough feature
 in many programming languages that you have probably seen them before.
 
 Here’s an example of the `clone()` method in action:
@@ -275,7 +275,7 @@ let s2 = s1.clone();
 println!("{}", s1);
 ```
 
-[structs]: ch05-01-structs.html
+[`structs`]: ch05-01-structs.html
 
 This will work just fine. Remember our diagram from before? In this case,
 it _is_ doing this: