Set different mapping for different layout

I changed toggle Guake visibility shortcut from F12 key to ` (the key above Tab) and it works fine when I use English keyboard layout. But when I switch to the Slovak one it does not work and the Guake terminal is shown by pressing the H key instead. Althought I use English keyboard layout most of the time it is a big issue for me because I would like to be able to type Slovak texts without toggling Guake every time I press the H key.

I would really appreciate fixing this issue as I do not find using F12 key to toggle the terminal I use so often to be very comfortable due to its position between many other keys.

I am running Guake 0.4.4 on Arch Linux with Gnome 3.10.