diff --git a/src/ownership/borrowing.md b/src/ownership/borrowing.md
index fda32e1c..4afddf86 100644
--- a/src/ownership/borrowing.md
+++ b/src/ownership/borrowing.md
@@ -25,7 +25,7 @@ fn main() {
 <details>
 
 Notes on stack returns:
-* Demonstrate that the return from `add` is cheap because the compiler can eliminate the copy operation. Change the above code to print stack addresses and run it on the [Playground](https://play.rust-lang.org/). In the "DEBUG" optimization level, the addresses should change, while the stay the same when changing to the "RELEASE" setting:
+* Demonstrate that the return from `add` is cheap because the compiler can eliminate the copy operation. Change the above code to print stack addresses and run it on the [Playground]. In the "DEBUG" optimization level, the addresses should change, while the stay the same when changing to the "RELEASE" setting:
 
   ```rust,editable
   #[derive(Debug)]
@@ -49,3 +49,5 @@ Notes on stack returns:
 * In C++, copy elision has to be defined in the language specification because constructors can have side effects. In Rust, this is not an issue at all.
 
 </details>
+
+[Playground]: https://play.rust-lang.org/