diff --git a/Casks/virtualbox.rb b/Casks/virtualbox.rb
index 13aca2a2e0..46a17b71d5 100644
--- a/Casks/virtualbox.rb
+++ b/Casks/virtualbox.rb
@@ -2,7 +2,7 @@ cask :v1 => 'virtualbox' do
   version '4.3.20-96996'
   sha256 '744e77119a640a5974160213c9912568a3d88dbd06a2fc6b6970070941732705'
 
-  url "http://download.virtualbox.org/virtualbox/#{version.gsub(/-.*/, '')}/VirtualBox-#{version}-OSX.dmg"
+  url "http://download.virtualbox.org/virtualbox/#{version.sub(/-.*$/, '')}/VirtualBox-#{version}-OSX.dmg"
   homepage 'http://www.virtualbox.org'
   license :gpl