diff --git a/src/lib.rs b/src/lib.rs
index b22ce9c..252a6cb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2,7 +2,7 @@
 // Copyright (c) 2015, edef <edef@edef.eu>
 // See the LICENSE file included in this distribution.
 #![feature(no_std)]
-#![feature(asm, core)]
+#![feature(asm, core, core_prelude)]
 #![no_std]
 
 //! libfringe is a low-level green threading library.