diff --git a/demos/gtk-demo/menus.c b/demos/gtk-demo/menus.c
index 86c435e..a36b850 100644
--- a/demos/gtk-demo/menus.c
+++ b/demos/gtk-demo/menus.c
@@ -46,6 +46,7 @@ create_menu (gint depth)
       sprintf (buf, "item %2d - %d", depth, j);
 
       menu_item = gtk_radio_menu_item_new_with_label_from_widget (NULL, buf);
+      gtk_widget_set_tooltip_text (GTK_WIDGET (menu_item), buf);
       gtk_radio_menu_item_join_group (GTK_RADIO_MENU_ITEM (menu_item), last_item);
       last_item = GTK_RADIO_MENU_ITEM (menu_item);
 
