diff --git a/sub/core/src/never.rs b/sub/core/src/never.rs
index 34e8e75..25b02f6 100644
--- a/sub/core/src/never.rs
+++ b/sub/core/src/never.rs
@@ -1,7 +1,7 @@
 
 pub type Never = <fn()->! as Ret>::Ret;
 
-trait Ret { type Ret; }
+pub trait Ret { type Ret; }
 impl<R> Ret for fn() -> R {
     type Ret=R;
 }