diff --git a/src/libstd/tuple.rs b/src/libstd/tuple.rs
index 26c1597f3a0..08aa979cf63 100644
--- a/src/libstd/tuple.rs
+++ b/src/libstd/tuple.rs
@@ -25,7 +25,9 @@
 //! * `Eq`
 //! * `PartialOrd`
 //! * `Ord`
+//! * `Debug`
 //! * `Default`
+//! * `Hash`
 //!
 //! # Examples
 //!