diff --git a/src/libcore/atomic.rs b/src/libcore/atomic.rs
index c6434e71957ae..3d133b6b7b041 100644
--- a/src/libcore/atomic.rs
+++ b/src/libcore/atomic.rs
@@ -145,7 +145,7 @@ unsafe impl<T> Sync for AtomicPtr<T> {}
 /// "relaxed" atomics allow all reorderings.
 ///
 /// Rust's memory orderings are [the same as
-/// C++'s](http://gcc.gnu.org/wiki/Atomic/GCCMM/AtomicSync).
+/// LLVM's](http://llvm.org/docs/LangRef.html#memory-model-for-concurrent-operations).
 #[stable(feature = "rust1", since = "1.0.0")]
 #[derive(Copy, Clone)]
 pub enum Ordering {