diff --git a/src/lib.rs b/src/lib.rs
index 3d63ec1..3d24df1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,4 +1,3 @@
-#![feature(convert, core)]
 #![allow(raw_pointer_derive, non_camel_case_types)]
 
 extern crate libc;