diff --git a/src/lib/box.rs b/src/lib/box.rs
index 4429fd6a0b0..bac7d561b9e 100644
--- a/src/lib/box.rs
+++ b/src/lib/box.rs
@@ -1,4 +1,4 @@
-export rustrt;
+export ptr_eq;
 
 native "rust" mod rustrt {
     fn rust_ptr_eq[T](@T a, @T b) -> int;