diff --git a/src/lib.rs b/src/lib.rs
index 5175c21..9f82a03 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(iterator_flatten)]
-
 #[macro_use] extern crate gfx;
 #[allow(unused_imports)] #[macro_use] extern crate log;
 extern crate nalgebra as na;