diff --git a/src/liballoc/boxed.rs b/src/liballoc/boxed.rs
index cb33b4d4784..6a6a9146e24 100644
--- a/src/liballoc/boxed.rs
+++ b/src/liballoc/boxed.rs
@@ -63,6 +63,8 @@
 //!
 //! [dereferencing]: ../../std/ops/trait.Deref.html
 //! [`Box`]: struct.Box.html
+//! [`Global`]: ../alloc/struct.Global.html
+//! [`Layout`]: ../alloc/struct.Layout.html
 
 #![stable(feature = "rust1", since = "1.0.0")]