diff --git a/content/base/src/StyleSheetList.cpp b/content/base/src/StyleSheetList.cpp
index b40833656a2..db976fb3107 100644
--- a/content/base/src/StyleSheetList.cpp
+++ b/content/base/src/StyleSheetList.cpp
@@ -23,9 +23,9 @@ NS_IMPL_CYCLE_COLLECTING_ADDREF(StyleSheetList)
 NS_IMPL_CYCLE_COLLECTING_RELEASE(StyleSheetList)
 
 /* virtual */ JSObject*
-StyleSheetList::WrapObject(JSContext* aCx)
+StyleSheetList::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aScope)
 {
-  return StyleSheetListBinding::Wrap(aCx, this);
+  return StyleSheetListBinding::Wrap(aCx, aScope, this);
 }
 
 NS_IMETHODIMP
diff --git a/content/base/src/StyleSheetList.h b/content/base/src/StyleSheetList.h
index 3c272020cfb..7d2edb4c971 100644
--- a/content/base/src/StyleSheetList.h
+++ b/content/base/src/StyleSheetList.h
@@ -29,7 +29,8 @@ public:
   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(StyleSheetList)
   NS_DECL_NSIDOMSTYLESHEETLIST
 
-  virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE MOZ_FINAL;
+  virtual JSObject*
+  WrapObject(JSContext* aCx, JS::Handle<JSObject*> aScope) MOZ_OVERRIDE MOZ_FINAL;
 
   virtual nsINode* GetParentObject() const = 0;