diff --git a/src/libcore/tuple/mod.rs b/src/libcore/tuple/mod.rs
index 89d07a61da80d..8160424be292c 100644
--- a/src/libcore/tuple/mod.rs
+++ b/src/libcore/tuple/mod.rs
@@ -38,9 +38,12 @@
 //! Using methods:
 //!
 //! ```
+//! #[allow(deprecated)]
+//! # fn main() {
 //! let pair = ("pi", 3.14f64);
 //! assert_eq!(pair.val0(), "pi");
 //! assert_eq!(pair.val1(), 3.14f64);
+//! # }
 //! ```
 //!
 //! Using traits implemented for tuples: