diff --git a/js/ui/notificationDaemon.js b/js/ui/notificationDaemon.js
index c691efe44..111f6b487 100644
--- a/js/ui/notificationDaemon.js
+++ b/js/ui/notificationDaemon.js
@@ -488,8 +488,8 @@ NotificationDaemon.prototype = {
 
 DBus.conformExport(NotificationDaemon.prototype, NotificationDaemonIface);
 
-function Source(title, pid, sender) {
-    this._init(title, pid, sender);
+function Source(title, pid, sender, trayIcon) {
+    this._init(title, pid, sender, trayIcon);
 }
 
 Source.prototype = {