diff --git a/ports/cef/lib.rs b/ports/cef/lib.rs
index 3e22aefe254..734a1ce3121 100644
--- a/ports/cef/lib.rs
+++ b/ports/cef/lib.rs
@@ -6,7 +6,6 @@
 #![feature(box_syntax)]
 #![feature(core_intrinsics)]
 #![feature(filling_drop)]
-#![feature(iter_arith)]
 #![feature(link_args)]
 #![feature(plugin)]
 #![feature(unicode)]