diff --git a/src/x11/meta-startup-notification-x11.c b/src/x11/meta-startup-notification-x11.c
index 045ee7768..da80f5e14 100644
--- a/src/x11/meta-startup-notification-x11.c
+++ b/src/x11/meta-startup-notification-x11.c
@@ -355,7 +355,7 @@ meta_x11_startup_notification_launch (MetaX11Display *x11_display,
                            (gpointer *) &func);
         }
 
-      if (func)
+      if (func && application_id)
         func (sn_launcher, application_id);
 
       g_module_close (self);