diff --git a/src/components/script/dom/webidls/WorkerGlobalScope.webidl b/src/components/script/dom/webidls/WorkerGlobalScope.webidl
index 1b20c5eb190..a8e3b92d193 100644
--- a/src/components/script/dom/webidls/WorkerGlobalScope.webidl
+++ b/src/components/script/dom/webidls/WorkerGlobalScope.webidl
@@ -5,7 +5,7 @@
 // http://www.whatwg.org/html/#workerglobalscope
 //[Exposed=Worker]
 interface WorkerGlobalScope : EventTarget {
-  //readonly attribute WorkerGlobalScope self;
+  readonly attribute WorkerGlobalScope self;
   //readonly attribute WorkerLocation location;
 
   //void close();
diff --git a/src/components/script/dom/workerglobalscope.rs b/src/components/script/dom/workerglobalscope.rs
index b12e27d708c..e6f9235723d 100644
--- a/src/components/script/dom/workerglobalscope.rs
+++ b/src/components/script/dom/workerglobalscope.rs
@@ -46,10 +46,15 @@ impl WorkerGlobalScope {
 }
 
 pub trait WorkerGlobalScopeMethods {
+    fn Self(&self) -> Temporary<WorkerGlobalScope>;
     fn Console(&self) -> Temporary<Console>;
 }
 
 impl<'a> WorkerGlobalScopeMethods for JSRef<'a, WorkerGlobalScope> {
+    fn Self(&self) -> Temporary<WorkerGlobalScope> {
+        Temporary::from_rooted(self)
+    }
+
     fn Console(&self) -> Temporary<Console> {
         if self.console.get().is_none() {
             let console = Console::new(&global::Worker(*self));