Gah! Small typo in download URL..
@ -1,5 +1,5 @@
cask :v1 => 'kicad-nightly' do
version 'r5967.20150721-035418.dmg'
version 'r5967.20150721-035418'
sha256 '3b45e0f963ea14653cac86d239d0f3e3a26f1c2ea73985d8a167691418caa9fd'
url "http://downloads.kicad-pcb.org/osx/kicad-#{version}.dmg"