Cannot bind § key to guake

When i bind the § key via guake preferences it works during the session but when i shutdown/log out and log back in again a popup appears and tells me that a problem occurred while binding the § key and that i will have to bind another one.

It's the top left key with § and ½ on it. (This is on a Swedish keyboard) http://ascii-table.com/img/keyboard-153.png

My keymap is sv-latin1