diff --git a/components/plugins/lib.rs b/components/plugins/lib.rs
index c6b1ea08a79..da826cf68e7 100644
--- a/components/plugins/lib.rs
+++ b/components/plugins/lib.rs
@@ -12,7 +12,7 @@
 //!  - `#[dom_struct]` : Implies `#[privatize]`,`#[jstraceable]`, and `#[must_root]`.
 //!     Use this for structs that correspond to a DOM type
 
-#![feature(plugin_registrar, quote, plugin, box_syntax, rustc_private, core)]
+#![feature(plugin_registrar, quote, plugin, box_syntax, rustc_private, core, unicode)]
 
 #![allow(missing_copy_implementations)]