diff --git a/alert.rc b/alert.rc
index aefa4e7..af60b10 100644
--- a/alert.rc
+++ b/alert.rc
@@ -11,7 +11,7 @@
 #[crate_type="lib"];
 
 #[cfg(target_os="macos")]
-extern mod core_foundation;
+extern mod core_foundation = "rust-core-foundation";
 #[cfg(target_os="macos")]
 extern mod cocoa;