diff --git a/atom/browser/api/event.cc b/atom/browser/api/event.cc
index 5a0d145a9431..af49bf957a50 100644
--- a/atom/browser/api/event.cc
+++ b/atom/browser/api/event.cc
@@ -19,8 +19,7 @@ v8::Persistent<v8::ObjectTemplate> template_;
 
 Event::Event()
     : sender_(NULL),
-      message_(NULL),
-      prevent_default_(false) {
+      message_(NULL) {
 }
 
 Event::~Event() {
@@ -52,8 +51,9 @@ void Event::WebContentsDestroyed() {
   message_ = NULL;
 }
 
-void Event::PreventDefault() {
-  prevent_default_ = true;
+void Event::PreventDefault(v8::Isolate* isolate) {
+  GetWrapper(isolate)->Set(StringToV8(isolate, "defaultPrevented"),
+                           v8::True(isolate));
 }
 
 bool Event::SendReply(const base::string16& json) {
diff --git a/atom/browser/api/event.h b/atom/browser/api/event.h
index c32eb8a36aae..0f00366e38ce 100644
--- a/atom/browser/api/event.h
+++ b/atom/browser/api/event.h
@@ -24,14 +24,11 @@ class Event : public Wrappable,
   void SetSenderAndMessage(content::WebContents* sender, IPC::Message* message);
 
   // event.PreventDefault().
-  void PreventDefault();
+  void PreventDefault(v8::Isolate* isolate);
 
   // event.sendReply(json), used for replying synchronous message.
   bool SendReply(const base::string16& json);
 
-  // Whether event.preventDefault() is called.
-  bool prevent_default() const { return prevent_default_; }
-
  protected:
   Event();
   virtual ~Event();
@@ -47,8 +44,6 @@ class Event : public Wrappable,
   content::WebContents* sender_;
   IPC::Message* message_;
 
-  bool prevent_default_;
-
   DISALLOW_COPY_AND_ASSIGN(Event);
 };
 
diff --git a/atom/browser/api/event_emitter.cc b/atom/browser/api/event_emitter.cc
index 768ab5f58763..64da7a85012a 100644
--- a/atom/browser/api/event_emitter.cc
+++ b/atom/browser/api/event_emitter.cc
@@ -98,17 +98,7 @@ bool EventEmitter::Emit(v8::Isolate* isolate,
   node::MakeCallback(isolate, GetWrapper(isolate), "emit", args.size(),
                      &args[0]);
 
-  if (use_native_event) {
-    Handle<Event> native_event;
-    if (ConvertFromV8(isolate, event, &native_event))
-      return native_event->prevent_default();
-  }
-
-  v8::Handle<v8::Value> prevent_default =
-      event->GetHiddenValue(StringToSymbol(isolate, "prevent_default"));
-  if (prevent_default.IsEmpty())
-    return false;
-  return prevent_default->BooleanValue();
+  return event->Get(StringToV8(isolate, "defaultPrevented"))->BooleanValue();
 }
 
 }  // namespace mate