diff --git a/src/components/main/constellation.rs b/src/components/main/constellation.rs
index ab3ac8043dc..e487ece1246 100644
--- a/src/components/main/constellation.rs
+++ b/src/components/main/constellation.rs
@@ -58,6 +58,7 @@ struct FrameTree {
     pub children: RefCell<Vec<ChildFrameTree>>,
 }
 
+#[deriving(Clone)]
 struct ChildFrameTree {
     frame_tree: Rc<FrameTree>,
     /// Clipping rect representing the size and position, in page coordinates, of the visible
@@ -65,15 +66,6 @@ struct ChildFrameTree {
     pub rect: Option<Rect<f32>>,
 }
 
-impl Clone for ChildFrameTree {
-    fn clone(&self) -> ChildFrameTree {
-        ChildFrameTree {
-            frame_tree: self.frame_tree.clone(),
-            rect: self.rect.clone(),
-        }
-    }
-}
-
 pub struct SendableFrameTree {
     pub pipeline: CompositionPipeline,
     pub children: Vec<SendableChildFrameTree>,