1 files changed, 5 insertions, 2 deletions
diff --git a/components/script/dom/serviceworker.rs b/components/script/dom/serviceworker.rs
index cce149b5368..6f2dce2f8e0 100644
--- a/components/script/dom/serviceworker.rs
+++ b/components/script/dom/serviceworker.rs
@@ -89,8 +89,11 @@ impl ServiceWorkerMethods for ServiceWorker {
         // Step 7
         let data = try!(StructuredCloneData::write(cx, message));
         let msg_vec = DOMMessage(data.move_to_arraybuffer());
-        let _ = self.global().r().constellation_chan().send(ScriptMsg::ForwardDOMMessage(msg_vec,
-                                                                                         self.scope_url.clone()));
+        let _ =
+            self.global().r()
+                .as_global_scope()
+                .constellation_chan()
+                .send(ScriptMsg::ForwardDOMMessage(msg_vec, self.scope_url.clone()));
         Ok(())
     }