diff --git a/src/libcore/lib.rs b/src/libcore/lib.rs
index 53de765b89c1d..f32e87df5eccb 100644
--- a/src/libcore/lib.rs
+++ b/src/libcore/lib.rs
@@ -106,6 +106,7 @@ mod should_not_exist;
 mod std {
     pub use clone;
     pub use cmp;
+    pub use kinds;
 
     #[cfg(test)] pub use realstd::fmt;    // needed for fail!()
     #[cfg(test)] pub use realstd::rt;     // needed for fail!()