diff --git a/src/user-defined-types/aliases.md b/src/user-defined-types/aliases.md
index 4c998dd89f7..487590282c2 100644
--- a/src/user-defined-types/aliases.md
+++ b/src/user-defined-types/aliases.md
@@ -23,6 +23,10 @@ type PlayerInventory = RwLock<Vec<Arc<RefCell<Item>>>>;
 
 <details>
 
-C programmers will recognize this as similar to a `typedef`.
+- A [newtype](tuple-structs.html) is often a better alternative since it creates
+  a distinct type. Prefer `struct InventoryCount(usize)` to
+  `type InventoryCount = usize`.
+
+- C programmers will recognize this as similar to a `typedef`.
 
 </details>