diff --git a/js/ui/dateMenu.js b/js/ui/dateMenu.js
index 6cf4c7014..4a3dd2b33 100644
--- a/js/ui/dateMenu.js
+++ b/js/ui/dateMenu.js
@@ -60,8 +60,8 @@ DateMenuButton.prototype = {
         let hbox;
         let vbox;
 
-        //this._eventSource = new Calendar.EmptyEventSource();
-        this._eventSource = new Calendar.FakeEventSource();
+        this._eventSource = new Calendar.EmptyEventSource();
+        //this._eventSource = new Calendar.FakeEventSource();
         // TODO: write e.g. EvolutionEventSource
 
         PanelMenu.Button.prototype._init.call(this, St.Align.START);