diff --git a/components/layout/wrapper.rs b/components/layout/wrapper.rs
index e3d7f0a294a..5bd1406c27a 100644
--- a/components/layout/wrapper.rs
+++ b/components/layout/wrapper.rs
@@ -275,14 +275,6 @@ impl<'ln> TNode<'ln> for ServoLayoutNode<'ln> {
             self.node.next_sibling_ref().map(|node| self.new_with_this_lifetime(&node))
         }
     }
-
-    fn style(&self) -> Ref<Arc<ComputedValues>> {
-        Ref::map(self.borrow_data().unwrap(), |data| data.style.as_ref().unwrap())
-    }
-
-    fn unstyle(self) {
-        self.mutate_data().unwrap().style = None;
-    }
 }
 
 impl<'ln> LayoutNode<'ln> for ServoLayoutNode<'ln> {
diff --git a/components/style/dom.rs b/components/style/dom.rs
index f85484e0c70..25656b22e5c 100644
--- a/components/style/dom.rs
+++ b/components/style/dom.rs
@@ -160,10 +160,14 @@ pub trait TNode<'ln> : Sized + Copy + Clone {
 
     /// Returns the style results for the given node. If CSS selector matching
     /// has not yet been performed, fails.
-    fn style(&self) -> Ref<Arc<ComputedValues>>;
+    fn style(&self) -> Ref<Arc<ComputedValues>> {
+        Ref::map(self.borrow_data().unwrap(), |data| data.style.as_ref().unwrap())
+    }
 
     /// Removes the style from this node.
-    fn unstyle(self);
+    fn unstyle(self) {
+        self.mutate_data().unwrap().style = None;
+    }
 }
 
 pub trait TDocument<'ld> : Sized + Copy + Clone {
diff --git a/components/style/lib.rs b/components/style/lib.rs
index 7fd0b5b132c..18e84d5729e 100644
--- a/components/style/lib.rs
+++ b/components/style/lib.rs
@@ -4,6 +4,7 @@
 
 #![feature(box_syntax)]
 #![feature(box_patterns)]
+#![feature(cell_extras)]
 #![feature(concat_idents)]
 #![feature(core_intrinsics)]
 #![feature(custom_attribute)]