1 files changed, 2 insertions, 2 deletions
diff --git a/components/script/dom/bindings/trace.rs b/components/script/dom/bindings/trace.rs
index b7dc3e2f663..acda028a834 100644
--- a/components/script/dom/bindings/trace.rs
+++ b/components/script/dom/bindings/trace.rs
@@ -56,7 +56,7 @@ use js::rust::Runtime;
 use layout_interface::{LayoutChan, LayoutRPC};
 use libc;
 use msg::constellation_msg::ConstellationChan;
-use msg::constellation_msg::{PipelineId, SubpageId, WindowSizeData};
+use msg::constellation_msg::{PipelineId, SubpageId, WindowSizeData, WindowSizeType};
 use net_traits::image::base::{Image, ImageMetadata};
 use net_traits::image_cache_thread::{ImageCacheChan, ImageCacheThread};
 use net_traits::response::HttpsState;
@@ -294,7 +294,7 @@ no_jsmanaged_fields!(PropertyDeclarationBlock);
 no_jsmanaged_fields!(HashSet<T>);
 // These three are interdependent, if you plan to put jsmanaged data
 // in one of these make sure it is propagated properly to containing structs
-no_jsmanaged_fields!(SubpageId, WindowSizeData, PipelineId);
+no_jsmanaged_fields!(SubpageId, WindowSizeData, WindowSizeType, PipelineId);
 no_jsmanaged_fields!(TimerEventId, TimerSource);
 no_jsmanaged_fields!(WorkerId);
 no_jsmanaged_fields!(QuirksMode);