trisquel 6.0 Gnome-shell uses google: should be ddg

Hello all,
Following up from issue:
http://trisquel.info/en/issues/7197#comment-33815

and http://trisquel.info/en/forum/how-do-you-use-gnome-shell#comment-20428

just to let you know how to change to ddg in trisquel 6.0 is the same as commented by malberts in the above link. But the path for the xml file is /usr/share/gnome-shell/open-search-providers

enjoy!