Index: src/FilterEngine.cpp
diff --git a/src/FilterEngine.cpp b/src/FilterEngine.cpp
index 96c4571fbf593f47041bd3415fc44d73f55da7f1..9448abeb10adf2a4856dcbd0dcb701c96dc5d47a 100644
--- a/src/FilterEngine.cpp
+++ b/src/FilterEngine.cpp
@@ -265,7 +265,12 @@ NotificationPtr FilterEngine::GetNextNotificationToShow(const std::string& url)
   {
     params.push_back(jsEngine->NewValue(url));
   }
-  return Notification::JsValueToNotification(func->Call(params));
+  JsValuePtr jsNotification = func->Call(params);
+  if (!jsNotification->IsObject())
+  {
+    return NotificationPtr();
+  }
+  return NotificationPtr(new Notification(jsNotification));
 }
 
 AdblockPlus::FilterPtr FilterEngine::Matches(const std::string& url,