--- a/gfx/webrender_bindings/src/bindings.rs
+++ b/gfx/webrender_bindings/src/bindings.rs
@@ -1721,17 +1721,17 @@ pub extern "C" fn wr_dp_push_box_shadow(
     state.frame_builder
          .dl_builder
          .push_box_shadow(&prim_info,
                           box_bounds,
                           offset,
                           color,
                           blur_radius,
                           spread_radius,
-                          border_radius,
+                          BorderRadius::uniform(border_radius),
                           clip_mode);
 }
 
 #[no_mangle]
 pub unsafe extern "C" fn wr_api_finalize_builder(state: &mut WrState,
                                                  content_size: &mut LayoutSize,
                                                  dl_descriptor: &mut BuiltDisplayListDescriptor,
                                                  dl_data: &mut WrVecU8) {