diff --git a/servo/src/components/main/layout/context.rs b/servo/src/components/main/layout/context.rs
index 6d0391aaa85a..4163de71c6ca 100644
--- a/servo/src/components/main/layout/context.rs
+++ b/servo/src/components/main/layout/context.rs
@@ -52,6 +52,7 @@ static mut STYLE_SHARING_CANDIDATE_CACHE: *mut StyleSharingCandidateCache =
 local_data_key!(style_sharing_candidate_cache: *mut StyleSharingCandidateCache)
 
 /// Data shared by all layout workers.
+#[allow(raw_pointer_deriving)]
 #[deriving(Clone)]
 pub struct LayoutContext {
     /// The local image cache.