diff --git a/source/ubinstall-gtk.c b/source/ubinstall-gtk.c
index c26944b..6262fbb 100644
--- a/source/ubinstall-gtk.c
+++ b/source/ubinstall-gtk.c
@@ -2266,6 +2266,7 @@ void on_exit_accepted(GtkWidget *,dictionary *dict){
     // free(window);
     // yon_dictionary_free_all(dict,NULL);
     // free(dict);
+    if (window){};
     gtk_widget_destroy(widgets->MainWindow);
 }