open usb stick with disk usage check tool instead of nautilus from system msg window

I’m using openSUSE13.2, Gnome Shell 3.14.1.
when I connect my kingston USB stick to my laptop, there will be a system msg windwo, from this window, there is an option, to open the disk usage ckecking took, instead of nautilus to open directory, anyone can tell me how to change it to open it with nautilus from the system msg as default application?