diff --git a/Casks/webkit-nightly.rb b/Casks/webkit-nightly.rb
new file mode 100644
index 000000000000..0282a1959471
--- /dev/null
+++ b/Casks/webkit-nightly.rb
@@ -0,0 +1,7 @@
+class WebkitNightly < Cask
+  url 'http://builds.nightly.webkit.org/files/trunk/mac/WebKit-SVN-r156962.dmg'
+  homepage 'http://www.webkit.org'
+  version 'r156962'
+  sha1 '4fe3c23ad7f1d920458a4a7dbc49c4ad4e21b9a2'
+  link 'WebKit.app'
+end