diff --git a/cocoa.rc b/cocoa.rc
index d3e0182..d80c437 100644
--- a/cocoa.rc
+++ b/cocoa.rc
@@ -9,6 +9,8 @@
 
 #[crate_id = "github.com/mozilla-servo/rust-cocoa#cocoa:0.1"];
 #[crate_type = "lib"];
+#[crate_type = "dylib"];
+#[crate_type = "rlib"];
 
 #[comment = "The Servo Parallel Browser Project"];
 #[license = "MIT"];