Set guake as default terminal

[white-gecko]

I would like to set guake as my default terminal, when I rightclick on a folder in nautilus and select "Open in Terminal". How can I do that?

I found out, that with

gsettings set org.gnome.desktop.default-applications.terminal exec # currently 'gnome-terminal'
gsettings set org.gnome.desktop.default-applications.terminal exec-arg # currently '-x'

I can set my default terminal application, but

gsettings set org.gnome.desktop.default-applications.terminal exec guake

did not yet do the trick.

Did anyone try this already?