diff --git a/src/doc/book/type-aliases.md b/src/doc/book/type-aliases.md
index d175da35f5ec9..def2e31f3514b 100644
--- a/src/doc/book/type-aliases.md
+++ b/src/doc/book/type-aliases.md
@@ -53,7 +53,9 @@ if x == y {
 ```
 
 This compiles without error. Values of a `Num` type are the same as a value of
-type `i32`, in every way.
+type `i32`, in every way. You can use [tuple struct] to really get a new type.
+
+[tuple struct]: structs.html#tuple-structs
 
 You can also use type aliases with generics: