diff --git a/interface/wx/notifmsg.h b/interface/wx/notifmsg.h
index 7e53b3f2c8..4a66b251f8 100644
--- a/interface/wx/notifmsg.h
+++ b/interface/wx/notifmsg.h
@@ -216,3 +216,6 @@ public:
         const wxString& appId = wxString());
 };
 
+wxEventType wxEVT_NOTIFICATION_MESSAGE_CLICK;
+wxEventType wxEVT_NOTIFICATION_MESSAGE_DISMISSED;
+wxEventType wxEVT_NOTIFICATION_MESSAGE_ACTION;