diff --git a/Casks/adium-beta.rb b/Casks/adium-beta.rb
index d022d7af12cb41..246af41fe2acf3 100644
--- a/Casks/adium-beta.rb
+++ b/Casks/adium-beta.rb
@@ -4,6 +4,7 @@ class AdiumBeta < Cask
 
   url "https://adiumx.cachefly.net/Adium_#{version}.dmg"
   homepage 'https://beta.adium.im/'
+  license :oss
 
   app 'Adium.app'
 end
diff --git a/Casks/adobe-reader-fr.rb b/Casks/adobe-reader-fr.rb
index 1160eb663989dc..eb0ce441a3652c 100644
--- a/Casks/adobe-reader-fr.rb
+++ b/Casks/adobe-reader-fr.rb
@@ -4,6 +4,7 @@ class AdobeReaderFr < Cask
 
   url "http://ardownload.adobe.com/pub/adobe/reader/mac/11.x/#{version}/fr_FR/AdbeRdr11000_fr_FR.dmg"
   homepage 'http://get.adobe.com/fr/reader/'
+  license :closed
 
   pkg 'Adobe Reader XI Installer.pkg'
   uninstall :pkgutil => 'com.adobe.acrobat.reader.11000.*'
diff --git a/Casks/adobe-reader-ja.rb b/Casks/adobe-reader-ja.rb
index 922a9dc597ef81..67f82f42f01f85 100644
--- a/Casks/adobe-reader-ja.rb
+++ b/Casks/adobe-reader-ja.rb
@@ -5,6 +5,7 @@ class AdobeReaderJa < Cask
 
   url "http://ardownload.adobe.com/pub/adobe/reader/mac/#{major_version}.x/#{version}/ja_JP/AdbeRdr#{version.gsub('.', '')}_ja_JP.dmg"
   homepage 'http://www.adobe.com/jp/products/reader.html'
+  license :closed
 
   pkg 'Adobe Reader XI Installer.pkg'
   uninstall :pkgutil => "com.adobe.acrobat.reader.#{major_version}.*",
diff --git a/Casks/airmail-beta.rb b/Casks/airmail-beta.rb
index 937905f7d8f9c0..a7718d8f68e1cd 100644
--- a/Casks/airmail-beta.rb
+++ b/Casks/airmail-beta.rb
@@ -4,6 +4,7 @@ class AirmailBeta < Cask
 
   url 'https://rink.hockeyapp.net/api/2/apps/84be85c3331ee1d222fd7f0b59e41b04?format=zip'
   homepage 'http://airmailapp.com/beta/'
+  license :unknown
 
   app 'AirMail Beta.app'
 end
diff --git a/Casks/aquamacs25.rb b/Casks/aquamacs25.rb
index 7e647eb0a5ddee..ad39f8e5187af9 100644
--- a/Casks/aquamacs25.rb
+++ b/Casks/aquamacs25.rb
@@ -4,6 +4,7 @@ class Aquamacs25 < Cask
 
   url "http://braeburn.aquamacs.org/releases/Aquamacs-Emacs-#{version}.dmg"
   homepage 'http://aquamacs.org/'
+  license :oss
 
   app 'Aquamacs.app'
 end
diff --git a/Casks/arduino-beta.rb b/Casks/arduino-beta.rb
index 639bc00e848db2..e8ab7bce9d9777 100644
--- a/Casks/arduino-beta.rb
+++ b/Casks/arduino-beta.rb
@@ -4,6 +4,7 @@ class ArduinoBeta < Cask
 
   url 'http://downloads.arduino.cc/arduino-1.5.7-macosx-java7-r2.zip'
   homepage 'http://arduino.cc/'
+  license :unknown
 
   app 'Arduino.app'
 end
diff --git a/Casks/arq3.rb b/Casks/arq3.rb
index 642008d2896663..7f8b55b07ce4b1 100644
--- a/Casks/arq3.rb
+++ b/Casks/arq3.rb
@@ -4,6 +4,7 @@ class Arq3 < Cask
 
   url "http://www.haystacksoftware.com/arq/Arq_#{version}.zip"
   homepage 'http://www.haystacksoftware.com/arq/'
+  license :unknown
 
   app 'Arq.app'
 end
diff --git a/Casks/autodmg-beta.rb b/Casks/autodmg-beta.rb
index 9805de419e7397..4c5d50d96373b4 100644
--- a/Casks/autodmg-beta.rb
+++ b/Casks/autodmg-beta.rb
@@ -4,6 +4,7 @@ class AutodmgBeta < Cask
 
   url "https://github.com/MagerValp/AutoDMG/releases/download/v#{version}/AutoDMG-#{version}.dmg"
   homepage 'https://github.com/MagerValp/AutoDMG'
+  license :oss
 
   app 'AutoDMG.app'
 end
diff --git a/Casks/beyond-compare-4-beta.rb b/Casks/beyond-compare-4-beta.rb
index 7edad87ac23ead..fc8f49b665a733 100644
--- a/Casks/beyond-compare-4-beta.rb
+++ b/Casks/beyond-compare-4-beta.rb
@@ -4,6 +4,7 @@ class BeyondCompare4Beta < Cask
 
   url "http://www.scootersoftware.com/BCompareOSX-#{version}.zip"
   homepage 'http://www.scootersoftware.com/beta.php'
+  license :unknown
 
   app 'Beyond Compare.app'
 
diff --git a/Casks/camtwist-beta.rb b/Casks/camtwist-beta.rb
index 01ae22f98921f0..8b814fc0714a87 100644
--- a/Casks/camtwist-beta.rb
+++ b/Casks/camtwist-beta.rb
@@ -4,6 +4,7 @@ class CamtwistBeta < Cask
 
   url 'http://camtwiststudio.com/beta/CamTwist_3.0.dmg'
   homepage 'http://camtwiststudio.com/'
+  license :unknown
 
   uninstall :script => { :executable => 'Manual Install/CamTwist/uninstall.command' }
 end
diff --git a/Casks/charles-openjdk.rb b/Casks/charles-openjdk.rb
index c1e5c949c16d0f..e50eab9fea0e60 100644
--- a/Casks/charles-openjdk.rb
+++ b/Casks/charles-openjdk.rb
@@ -4,6 +4,7 @@ class CharlesOpenjdk < Cask
 
   url "http://www.charlesproxy.com/assets/release/#{version}/charles-proxy-#{version}-openjdk.dmg"
   homepage 'http://www.charlesproxy.com/'
+  license :unknown
 
   app 'Charles.app'
 end
diff --git a/Casks/cleanmymac-beta.rb b/Casks/cleanmymac-beta.rb
index ce6fb5a0bd6c79..dddcfe21abad73 100644
--- a/Casks/cleanmymac-beta.rb
+++ b/Casks/cleanmymac-beta.rb
@@ -5,6 +5,7 @@ class CleanmymacBeta < Cask
   url 'http://dl.devmate.com/com.macpaw.CleanMyMac2/beta/CleanMyMac2.zip'
   appcast 'http://updateinfo.devmate.com/com.macpaw.CleanMyMac2/beta/updates.xml'
   homepage 'http://macpaw.com/cleanmymac'
+  license :unknown
 
   app 'CleanMyMac 2.app'
 end
diff --git a/Casks/clipmenu-dev.rb b/Casks/clipmenu-dev.rb
index 4634a96eaee1a6..e48d4bad5b2fa1 100644
--- a/Casks/clipmenu-dev.rb
+++ b/Casks/clipmenu-dev.rb
@@ -4,6 +4,7 @@ class ClipmenuDev < Cask
 
   url "http://dl.dropbox.com/u/1140644/clipmenu/ClipMenu_#{version}.zip"
   homepage 'http://www.clipmenu.com/'
+  license :unknown
 
   app 'ClipMenu.app'
 end
diff --git a/Casks/cocktail-lion.rb b/Casks/cocktail-lion.rb
index 613f62908f7713..ad84c9b0ca7671 100644
--- a/Casks/cocktail-lion.rb
+++ b/Casks/cocktail-lion.rb
@@ -4,6 +4,7 @@ class CocktailLion < Cask
 
   url 'http://usa.maintain.se/CocktailLionEdition.dmg'
   homepage 'http://maintain.se/cocktail'
+  license :unknown
 
   app 'Cocktail.app'
 end
diff --git a/Casks/cocktail-mountainlion.rb b/Casks/cocktail-mountainlion.rb
index 7df8167f9f03ea..db9d40f1ac7121 100644
--- a/Casks/cocktail-mountainlion.rb
+++ b/Casks/cocktail-mountainlion.rb
@@ -4,6 +4,7 @@ class CocktailMountainlion < Cask
 
   url 'http://usa.maintain.se/CocktailMLE.dmg'
   homepage 'http://maintain.se/cocktail'
+  license :unknown
 
   app 'Cocktail.app'
 end
diff --git a/Casks/cocktail-snowleopard.rb b/Casks/cocktail-snowleopard.rb
index 7bd397cbeea01a..100c482d981857 100644
--- a/Casks/cocktail-snowleopard.rb
+++ b/Casks/cocktail-snowleopard.rb
@@ -4,6 +4,7 @@ class CocktailSnowleopard < Cask
 
   url 'http://usa.maintain.se/CocktailSLE.dmg'
   homepage 'http://maintain.se/cocktail'
+  license :unknown
 
   app 'Cocktail.app'
 end
diff --git a/Casks/command-line-tools-lion.rb b/Casks/command-line-tools-lion.rb
index 0686ce10e206cb..7445d99cc496bd 100644
--- a/Casks/command-line-tools-lion.rb
+++ b/Casks/command-line-tools-lion.rb
@@ -4,6 +4,7 @@ class CommandLineToolsLion < Cask
 
   url 'http://devimages.apple.com/downloads/xcode/command_line_tools_for_xcode_os_x_lion_april_2013.dmg'
   homepage 'https://developer.apple.com/xcode/downloads/'
+  license :unknown
 
   pkg 'Command Line Tools (Lion).mpkg'
 end
diff --git a/Casks/command-line-tools-mountain-lion.rb b/Casks/command-line-tools-mountain-lion.rb
index c8a686bf5534a3..98ca25801981db 100644
--- a/Casks/command-line-tools-mountain-lion.rb
+++ b/Casks/command-line-tools-mountain-lion.rb
@@ -4,6 +4,7 @@ class CommandLineToolsMountainLion < Cask
 
   url 'http://devimages.apple.com/downloads/xcode/command_line_tools_for_osx_mountain_lion_april_2014.dmg'
   homepage 'https://developer.apple.com/xcode/downloads/'
+  license :unknown
 
   pkg 'Command Line Tools (Mountain Lion).mpkg'
 end
diff --git a/Casks/daisydisk-snowleopard.rb b/Casks/daisydisk-snowleopard.rb
index ebce1a34f99e73..853788b53e82d1 100644
--- a/Casks/daisydisk-snowleopard.rb
+++ b/Casks/daisydisk-snowleopard.rb
@@ -4,6 +4,7 @@ class DaisydiskSnowleopard < Cask
 
   url 'http://www.daisydiskapp.com/downloads/DaisyDisk_2_1_2.dmg'
   homepage 'http://www.daisydiskapp.com/'
+  license :unknown
 
   app 'DaisyDisk.app'
 end
diff --git a/Casks/dash-beta.rb b/Casks/dash-beta.rb
index 8c2e1feaa7a32b..fcd0d2eb1600d6 100644
--- a/Casks/dash-beta.rb
+++ b/Casks/dash-beta.rb
@@ -4,6 +4,7 @@ class DashBeta < Cask
 
   url 'https://dl0tgz6ee3upo.cloudfront.net/production/app/builds/002/042/895/original/620a14dce3c435dc9f9d23e57d8ae668/Dash_Beta.app.zip'
   homepage 'http://kapeli.com/dash'
+  license :unknown
 
   app 'Dash Beta.app'
 end
diff --git a/Casks/deeper-lion.rb b/Casks/deeper-lion.rb
index e1b3856fe433fa..674cf79f12b76e 100644
--- a/Casks/deeper-lion.rb
+++ b/Casks/deeper-lion.rb
@@ -4,6 +4,7 @@ class DeeperLion < Cask
 
   url 'http://www.titanium.free.fr/download/107/Deeper.dmg'
   homepage 'http://www.titanium.free.fr/downloaddeeper.php'
+  license :unknown
 
   app 'Deeper.app'
 end
diff --git a/Casks/deeper-mountainlion.rb b/Casks/deeper-mountainlion.rb
index 5b22b50e6fae01..fc6e945083e941 100644
--- a/Casks/deeper-mountainlion.rb
+++ b/Casks/deeper-mountainlion.rb
@@ -4,6 +4,7 @@ class DeeperMountainlion < Cask
 
   url 'http://joel.barriere.pagesperso-orange.fr/dl/108/Deeper.dmg'
   homepage 'http://www.titanium.free.fr/downloaddeeper.php'
+  license :unknown
 
   app 'Deeper.app'
 end
diff --git a/Casks/deeper-snowleopard.rb b/Casks/deeper-snowleopard.rb
index 5c95e7fefc67e5..a0957bd4491f25 100644
--- a/Casks/deeper-snowleopard.rb
+++ b/Casks/deeper-snowleopard.rb
@@ -4,6 +4,7 @@ class DeeperSnowleopard < Cask
 
   url 'http://www.titanium.free.fr/download/106/Deeper.dmg'
   homepage 'http://www.titanium.free.fr/downloaddeeper.php'
+  license :unknown
 
   app 'Deeper.app'
 end
diff --git a/Casks/dropbox-experimental.rb b/Casks/dropbox-experimental.rb
index 5e7f92fe7fd714..f7cd50eb0a2e39 100644
--- a/Casks/dropbox-experimental.rb
+++ b/Casks/dropbox-experimental.rb
@@ -4,6 +4,7 @@ class DropboxExperimental < Cask
 
   url "https://dl.dropboxusercontent.com/u/17/Dropbox%20#{version}.dmg"
   homepage 'https://www.dropbox.com/'
+  license :unknown
 
   app 'Dropbox.app'
 end
diff --git a/Casks/eclipse-jee.rb b/Casks/eclipse-jee.rb
index 00154532b70fb1..47c58cab480b42 100644
--- a/Casks/eclipse-jee.rb
+++ b/Casks/eclipse-jee.rb
@@ -4,6 +4,7 @@ class EclipseJee < Cask
 
   url 'http://download.eclipse.org/technology/epp/downloads/release/kepler/SR1/eclipse-jee-kepler-SR1-macosx-cocoa-x86_64.tar.gz'
   homepage 'http://eclipse.org'
+  license :unknown
 
   app 'eclipse/Eclipse.app'
 end
diff --git a/Casks/emacs-nightly.rb b/Casks/emacs-nightly.rb
index 66791bcf965a82..9c4b5e4de73f0d 100644
--- a/Casks/emacs-nightly.rb
+++ b/Casks/emacs-nightly.rb
@@ -4,6 +4,7 @@ class EmacsNightly < Cask
 
   url 'http://emacsformacosx.com/emacs-builds/Emacs-2013-11-19_01-33-37-115148-universal-10.6.8.dmg'
   homepage 'http://emacsformacosx.com/'
+  license :oss
 
   app 'Emacs.app'
 end
diff --git a/Casks/evernote-beta.rb b/Casks/evernote-beta.rb
index 57b76430197b1b..7979de2b05dbe8 100644
--- a/Casks/evernote-beta.rb
+++ b/Casks/evernote-beta.rb
@@ -4,6 +4,7 @@ class EvernoteBeta < Cask
 
   url 'http://cdn1.evernote.com/mac-smd/prerelease/Evernote_BETA_5.6.0_Beta_6_450650.zip'
   homepage 'https://evernote.com/'
+  license :unknown
 
   app 'Evernote.app'
 end
diff --git a/Casks/firefox-aurora-ja.rb b/Casks/firefox-aurora-ja.rb
index 6a0b16e2f17f0a..d727a469dc3af9 100644
--- a/Casks/firefox-aurora-ja.rb
+++ b/Casks/firefox-aurora-ja.rb
@@ -4,6 +4,7 @@ class FirefoxAuroraJa < Cask
 
   url "https://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-mozilla-aurora-l10n/firefox-#{version}.ja-JP-mac.mac.dmg"
   homepage 'https://www.mozilla.org/ja/firefox/channel/#aurora'
+  license :oss
 
   app 'FirefoxAurora.app'
 end
diff --git a/Casks/firefox-aurora.rb b/Casks/firefox-aurora.rb
index d4f7f5c8efe7d3..f6b2ec56557c5e 100644
--- a/Casks/firefox-aurora.rb
+++ b/Casks/firefox-aurora.rb
@@ -4,6 +4,7 @@ class FirefoxAurora < Cask
 
   url "https://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-mozilla-aurora/firefox-#{version}.en-US.mac.dmg"
   homepage 'https://www.mozilla.org/en-US/firefox/aurora/'
+  license :oss
 
   app 'FirefoxAurora.app'
 end
diff --git a/Casks/firefox-beta-cn.rb b/Casks/firefox-beta-cn.rb
index 0669f5d4ccbad0..8364e958cede84 100644
--- a/Casks/firefox-beta-cn.rb
+++ b/Casks/firefox-beta-cn.rb
@@ -4,6 +4,7 @@ class FirefoxBetaCn < Cask
 
   url "https://download.mozilla.org/?product=firefox-#{version}&os=osx&lang=zh-CN"
   homepage 'https://www.mozilla.org/zh-CN/firefox/beta/'
+  license :oss
 
   app 'Firefox.app'
 end
diff --git a/Casks/firefox-beta-de.rb b/Casks/firefox-beta-de.rb
index 5426d3bc581955..6e3cd44e303bb9 100644
--- a/Casks/firefox-beta-de.rb
+++ b/Casks/firefox-beta-de.rb
@@ -4,6 +4,7 @@ class FirefoxBetaDe < Cask
 
   url "https://download.mozilla.org/?product=firefox-#{version}&os=osx&lang=de"
   homepage 'https://www.mozilla.org/de/firefox/beta/'
+  license :oss
 
   app 'Firefox.app'
 end
diff --git a/Casks/firefox-beta-gb.rb b/Casks/firefox-beta-gb.rb
index 62e6cc61c13aaa..7d09d297fc7bd4 100644
--- a/Casks/firefox-beta-gb.rb
+++ b/Casks/firefox-beta-gb.rb
@@ -4,6 +4,7 @@ class FirefoxBetaGb < Cask
 
   url "https://download.mozilla.org/?product=firefox-#{version}-SSL&os=osx&lang=en-GB"
   homepage 'https://www.mozilla.org/en-GB/firefox/beta/'
+  license :oss
 
   app 'Firefox.app'
 end
diff --git a/Casks/firefox-beta-ja.rb b/Casks/firefox-beta-ja.rb
index e624fcb7fe7f13..2d1e84f85d70f7 100644
--- a/Casks/firefox-beta-ja.rb
+++ b/Casks/firefox-beta-ja.rb
@@ -4,6 +4,7 @@ class FirefoxBetaJa < Cask
 
   url "https://download.mozilla.org/?product=firefox-#{version}&os=osx&lang=ja-JP-mac"
   homepage 'http://www.mozilla.org/ja/firefox/channel/#beta'
+  license :oss
 
   app 'Firefox.app'
 end
diff --git a/Casks/firefox-beta.rb b/Casks/firefox-beta.rb
index d342657c77fb6f..34c9d0a25c60fc 100644
--- a/Casks/firefox-beta.rb
+++ b/Casks/firefox-beta.rb
@@ -4,6 +4,7 @@ class FirefoxBeta < Cask
 
   url "https://download.mozilla.org/?product=firefox-#{version}&os=osx&lang=en-US"
   homepage 'https://www.mozilla.org/en-US/firefox/beta/'
+  license :oss
 
   app 'Firefox.app'
 end
diff --git a/Casks/firefox-cn.rb b/Casks/firefox-cn.rb
index 680a2d4541fb21..3ba3c1f48c9682 100644
--- a/Casks/firefox-cn.rb
+++ b/Casks/firefox-cn.rb
@@ -4,6 +4,7 @@ class FirefoxCn < Cask
 
   url 'https://download.mozilla.org/?product=firefox-latest&os=osx&lang=zh-CN'
   homepage 'https://www.mozilla.org/zh-CN/firefox/'
+  license :oss
 
   app 'Firefox.app'
 end
diff --git a/Casks/firefox-de.rb b/Casks/firefox-de.rb
index 07aa20bd153617..3a73d220f3d958 100644
--- a/Casks/firefox-de.rb
+++ b/Casks/firefox-de.rb
@@ -4,6 +4,7 @@ class FirefoxDe < Cask
 
   url 'https://download.mozilla.org/?product=firefox-latest&os=osx&lang=de'
   homepage 'https://www.mozilla.org/de/firefox/'
+  license :oss
 
   app 'Firefox.app'
 end
diff --git a/Casks/firefox-esr-cn.rb b/Casks/firefox-esr-cn.rb
index dc0cc208a746c1..9ff35b4380a115 100644
--- a/Casks/firefox-esr-cn.rb
+++ b/Casks/firefox-esr-cn.rb
@@ -4,6 +4,7 @@ class FirefoxEsrCn < Cask
 
   url "http://ftp.mozilla.org/pub/mozilla.org/firefox/releases/latest-esr/mac/zh-CN/Firefox%20#{version}esr.dmg"
   homepage 'https://www.mozilla.org/zh-CN/firefox/desktop/'
+  license :oss
 
   app 'Firefox.app'
 end
diff --git a/Casks/firefox-esr-us.rb b/Casks/firefox-esr-us.rb
index 6d082bee13da80..46fe9fda690ffc 100644
--- a/Casks/firefox-esr-us.rb
+++ b/Casks/firefox-esr-us.rb
@@ -4,6 +4,7 @@ class FirefoxEsrUs < Cask
 
   url "https://download.mozilla.org/?product=firefox-#{version}esr-SSL&os=osx&lang=en-US"
   homepage 'https://www.mozilla.org/en-US/firefox/organizations/faq/'
+  license :oss
 
   app 'Firefox.app'
 end
diff --git a/Casks/firefox-fr.rb b/Casks/firefox-fr.rb
index 02a0535d703954..6e6cfc6dee4d53 100644
--- a/Casks/firefox-fr.rb
+++ b/Casks/firefox-fr.rb
@@ -4,6 +4,7 @@ class FirefoxFr < Cask
 
   url 'https://download.mozilla.org/?product=firefox-latest&os=osx&lang=fr'
   homepage 'http://www.mozilla.org/fr/firefox/new/'
+  license :oss
 
   app 'Firefox.app'
 end
diff --git a/Casks/firefox-ja.rb b/Casks/firefox-ja.rb
index 30cc9233d5810f..8ec898cc28fd58 100644
--- a/Casks/firefox-ja.rb
+++ b/Casks/firefox-ja.rb
@@ -4,6 +4,7 @@ class FirefoxJa < Cask
 
   url 'https://download.mozilla.org/?product=firefox-latest&os=osx&lang=ja-JP-mac'
   homepage 'http://www.mozilla.jp/firefox/'
+  license :oss
 
   app 'Firefox.app'
 end
diff --git a/Casks/firefox-nightly-ja.rb b/Casks/firefox-nightly-ja.rb
index acd7c72fb1a0a6..f8f7556189a0f6 100644
--- a/Casks/firefox-nightly-ja.rb
+++ b/Casks/firefox-nightly-ja.rb
@@ -4,6 +4,7 @@ class FirefoxNightlyJa < Cask
 
   url "https://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-mozilla-central-l10n/firefox-#{version}.ja-JP-mac.mac.dmg"
   homepage 'https://nightly.mozilla.org/'
+  license :oss
 
   app 'FirefoxNightly.app'
 end
diff --git a/Casks/firefox-nightly.rb b/Casks/firefox-nightly.rb
index 6a7a48dfdf560a..2ede44fe6b113f 100644
--- a/Casks/firefox-nightly.rb
+++ b/Casks/firefox-nightly.rb
@@ -4,6 +4,7 @@ class FirefoxNightly < Cask
 
   url 'http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/firefox-35.0a1.en-US.mac.dmg'
   homepage 'https://nightly.mozilla.org/'
+  license :oss
 
   app 'FirefoxNightly.app'
 end
diff --git a/Casks/firefox-ux.rb b/Casks/firefox-ux.rb
index bdb4e717f191c2..957633082199c9 100644
--- a/Casks/firefox-ux.rb
+++ b/Casks/firefox-ux.rb
@@ -4,6 +4,7 @@ class FirefoxUx < Cask
 
   url 'https://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-ux/firefox-32.0a1.en-US.mac.dmg'
   homepage 'http://people.mozilla.org/~jwein/ux-nightly/'
+  license :oss
 
   app 'FirefoxUX.app'
 end
diff --git a/Casks/flux-beta.rb b/Casks/flux-beta.rb
index ebc0f5b159987c..1559ebdf53780b 100644
--- a/Casks/flux-beta.rb
+++ b/Casks/flux-beta.rb
@@ -4,6 +4,7 @@ class FluxBeta < Cask
 
   url 'https://justgetflux.com/mac/fluxbeta.zip'
   homepage 'https://justgetflux.com/'
+  license :unknown
 
   app 'Flux.app'
 
diff --git a/Casks/gcc481-linux64.rb b/Casks/gcc481-linux64.rb
index d202091eedb4d3..0866f59112276d 100644
--- a/Casks/gcc481-linux64.rb
+++ b/Casks/gcc481-linux64.rb
@@ -4,6 +4,7 @@ class Gcc481Linux64 < Cask
 
   url "http://crossgcc.rts-software.org/download/gcc-#{version}-for-linux32-linux64/gcc-#{version}-for-linux64.dmg"
   homepage 'http://crossgcc.rts-software.org/doku.php?id=start'
+  license :oss
 
   pkg "gcc-#{version}-for-linux64.pkg"
 end
diff --git a/Casks/google-chrome-beta.rb b/Casks/google-chrome-beta.rb
index fc57b5e2db38fc..1f7829b521a11e 100644
--- a/Casks/google-chrome-beta.rb
+++ b/Casks/google-chrome-beta.rb
@@ -4,6 +4,7 @@ class GoogleChromeBeta < Cask
 
   url 'http://dl.google.com/chrome/mac/beta/googlechrome.dmg'
   homepage 'https://www.google.com/intl/en/chrome/browser/beta.html'
+  license :closed
 
   app 'Google Chrome.app'
 end
diff --git a/Casks/google-chrome-canary.rb b/Casks/google-chrome-canary.rb
index 203363014e47e4..c510e80db22918 100644
--- a/Casks/google-chrome-canary.rb
+++ b/Casks/google-chrome-canary.rb
@@ -4,6 +4,7 @@ class GoogleChromeCanary < Cask
 
   url 'https://storage.googleapis.com/chrome-canary/GoogleChromeCanary.dmg'
   homepage 'https://www.google.com/chrome/browser/canary.html'
+  license :closed
 
   app 'Google Chrome Canary.app'
 end
diff --git a/Casks/google-chrome-dev.rb b/Casks/google-chrome-dev.rb
index 8bd4aa977414dc..f283271c18d3e0 100644
--- a/Casks/google-chrome-dev.rb
+++ b/Casks/google-chrome-dev.rb
@@ -4,6 +4,7 @@ class GoogleChromeDev < Cask
 
   url 'http://dl.google.com/chrome/mac/dev/googlechrome.dmg'
   homepage 'https://www.google.com/chrome/'
+  license :closed
 
   app 'Google Chrome.app'
 end
diff --git a/Casks/google-japanese-ime-dev.rb b/Casks/google-japanese-ime-dev.rb
index a10c62183d5d72..12b1d334b2cc61 100644
--- a/Casks/google-japanese-ime-dev.rb
+++ b/Casks/google-japanese-ime-dev.rb
@@ -4,6 +4,7 @@ class GoogleJapaneseImeDev < Cask
 
   url 'https://dl.google.com/japanese-ime/dev/GoogleJapaneseInput.dmg'
   homepage 'https://www.google.co.jp/ime/'
+  license :unknown
 
   pkg 'GoogleJapaneseInput.pkg'
   uninstall :pkgutil => 'com.google.pkg.GoogleJapaneseInput',
diff --git a/Casks/handbrakecli-nightly.rb b/Casks/handbrakecli-nightly.rb
index c0bdfffc63d4c1..860efa0d3c481d 100644
--- a/Casks/handbrakecli-nightly.rb
+++ b/Casks/handbrakecli-nightly.rb
@@ -4,6 +4,7 @@ class HandbrakecliNightly < Cask
 
   url 'http://download.handbrake.fr/nightly/HandBrake-6419svn-MacOSX.6_CLI_x86_64.dmg'
   homepage 'http://handbrake.fr'
+  license :unknown
 
   binary 'HandBrakeCLI'
 end
diff --git a/Casks/hearthstone-eu.rb b/Casks/hearthstone-eu.rb
index e9df6b01e62378..e386a2880ba28a 100644
--- a/Casks/hearthstone-eu.rb
+++ b/Casks/hearthstone-eu.rb
@@ -4,6 +4,7 @@ class HearthstoneEu < Cask
 
   url 'http://dist.blizzard.com/downloads/hs-installers/a6029a1d625c79252defff3914fb6e67/retail.1/Hearthstone-Setup-enGB.zip'
   homepage 'http://eu.battle.net/hearthstone/en/'
+  license :unknown
 
   caveats do
     manual_installer 'Hearthstone-Setup-enGB.app'
diff --git a/Casks/intellij-idea-community-eap.rb b/Casks/intellij-idea-community-eap.rb
index aa151ef4b0c19a..33353c30d298e5 100644
--- a/Casks/intellij-idea-community-eap.rb
+++ b/Casks/intellij-idea-community-eap.rb
@@ -4,6 +4,7 @@ class IntellijIdeaCommunityEap < Cask
 
   url "http://download.jetbrains.com/idea/ideaIC-#{version}.dmg"
   homepage 'https://www.jetbrains.com/idea/index.html'
+  license :unknown
 
   app 'IntelliJ IDEA 14 CE EAP.app'
 end
diff --git a/Casks/intellij-idea-ultimate-eap.rb b/Casks/intellij-idea-ultimate-eap.rb
index 6a5464865d2896..acf07e3e4fa0b2 100644
--- a/Casks/intellij-idea-ultimate-eap.rb
+++ b/Casks/intellij-idea-ultimate-eap.rb
@@ -4,6 +4,7 @@ class IntellijIdeaUltimateEap < Cask
 
   url "http://download.jetbrains.com/idea/ideaIU-#{version}.dmg"
   homepage 'https://www.jetbrains.com/idea/index.html'
+  license :unknown
 
   app 'IntelliJ IDEA 14 EAP.app'
 end
diff --git a/Casks/intellij-idea-ultimate12.rb b/Casks/intellij-idea-ultimate12.rb
index 1957f5e565bcf8..67e81b310ede0e 100644
--- a/Casks/intellij-idea-ultimate12.rb
+++ b/Casks/intellij-idea-ultimate12.rb
@@ -4,6 +4,7 @@ class IntellijIdeaUltimate12 < Cask
 
   url "http://download.jetbrains.com/idea/ideaIU-#{version}.dmg"
   homepage 'https://www.jetbrains.com/idea/index.html'
+  license :unknown
 
   app 'IntelliJ IDEA 12.app'
 end
diff --git a/Casks/istat-menus3.rb b/Casks/istat-menus3.rb
index 6fc0c94b7efe32..60e9b88d9a2151 100644
--- a/Casks/istat-menus3.rb
+++ b/Casks/istat-menus3.rb
@@ -4,6 +4,7 @@ class IstatMenus3 < Cask
 
   url "http://s3.amazonaws.com/bjango/files/istatmenus3/istatmenus#{version}.zip"
   homepage 'http://bjango.com/mac/istatmenus/'
+  license :unknown
 
   app 'iStat Menus.app'
 end
diff --git a/Casks/istat-menus4.rb b/Casks/istat-menus4.rb
index e30969aa711331..ae758e1972a54b 100644
--- a/Casks/istat-menus4.rb
+++ b/Casks/istat-menus4.rb
@@ -4,6 +4,7 @@ class IstatMenus4 < Cask
 
   url "http://s3.amazonaws.com/bjango/files/istatmenus4/istatmenus#{version}.zip"
   homepage 'http://bjango.com/mac/istatmenus/'
+  license :unknown
 
   app 'iStat Menus.app'
 end
diff --git a/Casks/iterm2-beta.rb b/Casks/iterm2-beta.rb
index 6f3617c2ea767b..997aaaa2282529 100644
--- a/Casks/iterm2-beta.rb
+++ b/Casks/iterm2-beta.rb
@@ -4,6 +4,7 @@ class Iterm2Beta < Cask
 
   url 'http://www.iterm2.com/downloads/beta/iTerm2-1_0_0_20140629.zip'
   homepage 'http://www.iterm2.com/'
+  license :oss
 
   app 'iTerm.app'
 end
diff --git a/Casks/iterm2-nightly.rb b/Casks/iterm2-nightly.rb
index 17d372279e6c0d..709bba85231cad 100644
--- a/Casks/iterm2-nightly.rb
+++ b/Casks/iterm2-nightly.rb
@@ -4,6 +4,7 @@ class Iterm2Nightly < Cask
 
   url 'http://www.iterm2.com/nightly/latest'
   homepage 'http://www.iterm2.com/'
+  license :oss
 
   app 'iTerm.app'
 end
diff --git a/Casks/java6.rb b/Casks/java6.rb
index b2c3334abad4cb..09e77d52a7643d 100644
--- a/Casks/java6.rb
+++ b/Casks/java6.rb
@@ -4,6 +4,7 @@ class Java6 < Cask
 
   url 'http://support.apple.com/downloads/DL1572/en_US/JavaForOSX2014-001.dmg'
   homepage 'http://support.apple.com/kb/DL1572'
+  license :unknown
 
   pkg 'JavaForOSX.pkg'
   uninstall :pkgutil => 'com.apple.pkg.JavaForMacOSX107'
diff --git a/Casks/java7.rb b/Casks/java7.rb
index 52f0d4cda1ffce..8b70a7bab49128 100644
--- a/Casks/java7.rb
+++ b/Casks/java7.rb
@@ -7,6 +7,7 @@ class Java7 < Cask
                     'oraclelicense' => 'accept-securebackup-cookie'
                   }
   homepage 'http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html'
+  license :unknown
 
   pkg 'JDK 7 Update 67.pkg'
   postflight do
diff --git a/Casks/jdownloader2.rb b/Casks/jdownloader2.rb
index 8fef03bee6161f..3834cc6d2991ba 100644
--- a/Casks/jdownloader2.rb
+++ b/Casks/jdownloader2.rb
@@ -8,6 +8,7 @@ class Jdownloader2 < Cask
     url 'http://installer.jdownloader.org/JD2SilentSetup.dmg'
   end
   homepage 'http://jdownloader.org/download/offline'
+  license :unknown
 
   caveats do
     manual_installer 'JDownloader Installer.app'
diff --git a/Casks/kaleidoscope-beta.rb b/Casks/kaleidoscope-beta.rb
index c79ab7c420ca71..36d75f9c86e866 100644
--- a/Casks/kaleidoscope-beta.rb
+++ b/Casks/kaleidoscope-beta.rb
@@ -4,6 +4,7 @@ class KaleidoscopeBeta < Cask
 
   url "http://cdn.kaleidoscopeapp.com/releases/Kaleidoscope-#{version}-131.zip"
   homepage 'http://www.kaleidoscopeapp.com/'
+  license :unknown
 
   app 'Kaleidoscope.app'
 end
diff --git a/Casks/keepassx0.rb b/Casks/keepassx0.rb
index cdbf2acc16f0e1..929a67040710d0 100644
--- a/Casks/keepassx0.rb
+++ b/Casks/keepassx0.rb
@@ -4,6 +4,7 @@ class Keepassx0 < Cask
 
   url "http://downloads.sourceforge.net/keepassx/KeePassX-#{version}.dmg"
   homepage 'http://www.keepassx.org/'
+  license :oss
 
   app 'KeePassX.app'
 end
diff --git a/Casks/keyremap4macbook-mountainlion.rb b/Casks/keyremap4macbook-mountainlion.rb
index 0fa312655be14c..b46f36a0a63bb8 100644
--- a/Casks/keyremap4macbook-mountainlion.rb
+++ b/Casks/keyremap4macbook-mountainlion.rb
@@ -4,6 +4,7 @@ class Keyremap4macbookMountainlion < Cask
 
   url "https://pqrs.org/macosx/keyremap4macbook/files/KeyRemap4MacBook-#{version}.dmg"
   homepage 'https://pqrs.org/macosx/keyremap4macbook/'
+  license :unknown
 
   pkg 'KeyRemap4MacBook.pkg'
 end
diff --git a/Casks/kobo-jp.rb b/Casks/kobo-jp.rb
index b10cab160a8cfb..e3a324bbef7c4e 100644
--- a/Casks/kobo-jp.rb
+++ b/Casks/kobo-jp.rb
@@ -4,6 +4,7 @@ class KoboJp < Cask
 
   url 'http://download.kobobooks.com/desktop/RakutenBooks/KoboSetup.dmg'
   homepage 'http://kobo.rakuten.co.jp'
+  license :unknown
 
   app 'Kobo.app'
 end
diff --git a/Casks/lightroom3.rb b/Casks/lightroom3.rb
index 591b93ab667580..6eb3e2c393ab89 100644
--- a/Casks/lightroom3.rb
+++ b/Casks/lightroom3.rb
@@ -4,6 +4,7 @@ class Lightroom3 < Cask
 
   url 'http://download.adobe.com/pub/adobe/lightroom/mac/3.x/Lightroom_3_LS11_mac_3_3.dmg'
   homepage 'http://www.adobe.com/support/downloads/thankyou.jsp?ftpID=4927&fileID=4588'
+  license :closed
 
   pkg 'Adobe Lightroom 3.pkg'
 end
diff --git a/Casks/lightroom4.rb b/Casks/lightroom4.rb
index 06d68da8093188..dfc142208a7613 100644
--- a/Casks/lightroom4.rb
+++ b/Casks/lightroom4.rb
@@ -4,6 +4,7 @@ class Lightroom4 < Cask
 
   url 'http://download.adobe.com/pub/adobe/lightroom/mac/4.x/Lightroom_4_LS11_mac_4_4.dmg'
   homepage 'http://www.adobe.com/support/downloads/thankyou.jsp?ftpID=5566&fileID=5578'
+  license :closed
 
   install 'Adobe Photoshop Lightroom 4.pkg'
   uninstall :pkgutil => 'com.adobe.Lightroom4'
diff --git a/Casks/little-snitch-nightly.rb b/Casks/little-snitch-nightly.rb
index 1f30fbd9495220..8cbb6e6742a451 100644
--- a/Casks/little-snitch-nightly.rb
+++ b/Casks/little-snitch-nightly.rb
@@ -4,6 +4,7 @@ class LittleSnitchNightly < Cask
 
   url "http://www.obdev.at/downloads/littlesnitch/nightly/LittleSnitch-#{version}.dmg"
   homepage 'http://www.obdev.at/products/littlesnitch/index.html'
+  license :unknown
 
   caveats do
     manual_installer 'Little Snitch Installer.app'
diff --git a/Casks/macaw-indigo.rb b/Casks/macaw-indigo.rb
index 403734bf3c0ca3..df7e0e0f8ed744 100644
--- a/Casks/macaw-indigo.rb
+++ b/Casks/macaw-indigo.rb
@@ -5,6 +5,7 @@ class MacawIndigo < Cask
   url "http://indigo.macaw.co/#{version}/MacawIndigo#{version}.dmg"
   appcast 'http://indigo.macaw.co/appcast.xml'
   homepage 'http://indigo.macaw.co/'
+  license :unknown
 
   app 'Macaw Indigo.app'
 end
diff --git a/Casks/macvim-kaoriya.rb b/Casks/macvim-kaoriya.rb
index 67632e8d5f9b06..4d242bae6f7bdf 100644
--- a/Casks/macvim-kaoriya.rb
+++ b/Casks/macvim-kaoriya.rb
@@ -4,6 +4,7 @@ class MacvimKaoriya < Cask
 
   url 'https://github.com/splhack/macvim/releases/download/20140805/macvim-kaoriya-20140805.dmg'
   homepage 'https://code.google.com/p/macvim-kaoriya/'
+  license :oss
 
   app 'MacVim.app'
 end
diff --git a/Casks/macvim-mountainlion.rb b/Casks/macvim-mountainlion.rb
index 65388fa2de2527..3d38fd6266faaf 100644
--- a/Casks/macvim-mountainlion.rb
+++ b/Casks/macvim-mountainlion.rb
@@ -4,6 +4,7 @@ class MacvimMountainlion < Cask
 
   url 'https://github.com/eee19/macvim/releases/download/snapshot-72/MacVim-snapshot-72-Mountain-Lion.tbz'
   homepage 'http://code.google.com/p/macvim/'
+  license :oss
 
   app 'MacVim-snapshot-72/MacVim.app'
 end
diff --git a/Casks/middleclick-mountainlion.rb b/Casks/middleclick-mountainlion.rb
index c4be8208b5be15..2cad4643d24fb5 100644
--- a/Casks/middleclick-mountainlion.rb
+++ b/Casks/middleclick-mountainlion.rb
@@ -4,6 +4,7 @@ class MiddleclickMountainlion < Cask
 
   url 'http://clement.beffa.org/labs/downloads/MiddleClick_ml.zip'
   homepage 'http://clement.beffa.org/labs/projects/middleclick'
+  license :unknown
 
   app 'MiddleClick.app'
 end
diff --git a/Casks/middleclick-snowleopard.rb b/Casks/middleclick-snowleopard.rb
index 2739a35fe58e3d..07a3ccc0dcdc8f 100644
--- a/Casks/middleclick-snowleopard.rb
+++ b/Casks/middleclick-snowleopard.rb
@@ -4,6 +4,7 @@ class MiddleclickSnowleopard < Cask
 
   url 'http://clement.beffa.org/labs/downloads/MiddleClick.zip'
   homepage 'http://clement.beffa.org/labs/projects/middleclick'
+  license :unknown
 
   app 'MiddleClick.app'
 end
diff --git a/Casks/mono-mdk327.rb b/Casks/mono-mdk327.rb
index 9e2372bd3ad175..1f0d9ec543c2b7 100644
--- a/Casks/mono-mdk327.rb
+++ b/Casks/mono-mdk327.rb
@@ -4,6 +4,7 @@ class MonoMdk327 < Cask
 
   url "http://download.mono-project.com/archive/#{version}/macos-10-x86/MonoFramework-MDK-#{version}.macos10.xamarin.x86.pkg"
   homepage 'http://mono-project.com/'
+  license :oss
 
   pkg "MonoFramework-MDK-#{version}.macos10.xamarin.x86.pkg"
   uninstall :pkgutil => 'com.xamarin.mono-MDK.pkg'
diff --git a/Casks/mucommander-nightly.rb b/Casks/mucommander-nightly.rb
index 3239abd0c893d8..e8194425179221 100644
--- a/Casks/mucommander-nightly.rb
+++ b/Casks/mucommander-nightly.rb
@@ -4,6 +4,7 @@ class MucommanderNightly < Cask
 
   url 'http://www.mucommander.com/download/nightly/mucommander-current.app.tar.gz'
   homepage 'http://www.mucommander.com/index.php'
+  license :unknown
 
   app 'muCommander-0_9_0/muCommander.app'
 end
diff --git a/Casks/netbeans-php-nightly.rb b/Casks/netbeans-php-nightly.rb
index 9479a8617b9d75..a2195ae1d1769a 100644
--- a/Casks/netbeans-php-nightly.rb
+++ b/Casks/netbeans-php-nightly.rb
@@ -1,5 +1,6 @@
 class NetbeansPhpNightly < Cask
   homepage 'https://netbeans.org/'
+  license :unknown
   version '201405260001'
   sha256 '310e50c21614ec748ddbc3657b3dc51634ec5831ae28a18d76cff1c2c29d0088'
 
diff --git a/Casks/node-webkit-32bit.rb b/Casks/node-webkit-32bit.rb
index 25ff8046fdcf24..2a7d72a0d35603 100644
--- a/Casks/node-webkit-32bit.rb
+++ b/Casks/node-webkit-32bit.rb
@@ -4,6 +4,7 @@ class NodeWebkit32bit < Cask
 
   url "http://dl.node-webkit.org/v#{version}/node-webkit-v#{version}-osx-ia32.zip"
   homepage 'https://github.com/rogerwang/node-webkit'
+  license :oss
 
   caskroom_only true
 end
diff --git a/Casks/oclint-nightly.rb b/Casks/oclint-nightly.rb
index 71f238db37f386..e0b8d9229944c9 100644
--- a/Casks/oclint-nightly.rb
+++ b/Casks/oclint-nightly.rb
@@ -4,6 +4,7 @@ class OclintNightly < Cask
 
   url 'http://archives.oclint.org/nightly/oclint-0.9.dev.648e9af-x86_64-darwin-12.4.0.tar.gz'
   homepage 'http://oclint.org'
+  license :unknown
 
   binary 'oclint-0.9.dev.648e9af/bin/oclint'
   binary 'oclint-0.9.dev.648e9af/bin/oclint-json-compilation-database'
diff --git a/Casks/omnigraffle-professional5.rb b/Casks/omnigraffle-professional5.rb
index dc9fc7d2dc0594..0c34ad0aed68ba 100644
--- a/Casks/omnigraffle-professional5.rb
+++ b/Casks/omnigraffle-professional5.rb
@@ -4,6 +4,7 @@ class OmnigraffleProfessional5 < Cask
 
   url "http://www.omnigroup.com/ftp/pub/software/MacOSX/10.6/OmniGrafflePro-#{version}.dmg"
   homepage 'http://www.omnigroup.com/products/omnigraffle'
+  license :closed
 
   app 'OmniGraffle Professional 5.app'
 end
diff --git a/Casks/omnioutliner-professional3.rb b/Casks/omnioutliner-professional3.rb
index fb7728febf6270..3508eb4616b193 100644
--- a/Casks/omnioutliner-professional3.rb
+++ b/Casks/omnioutliner-professional3.rb
@@ -4,6 +4,7 @@ class OmnioutlinerProfessional3 < Cask
 
   url "http://www.omnigroup.com/ftp/pub/software/MacOSX/10.4/OmniOutlinerPro-#{version}.dmg"
   homepage 'http://www.omnigroup.com/omnioutliner/'
+  license :closed
 
   app 'OmniOutliner Professional.app'
 end
diff --git a/Casks/omniplan1.rb b/Casks/omniplan1.rb
index 9649e00480b3fc..5852a59e997ebd 100644
--- a/Casks/omniplan1.rb
+++ b/Casks/omniplan1.rb
@@ -4,6 +4,7 @@ class Omniplan1 < Cask
 
   url "http://www.omnigroup.com/ftp/pub/software/MacOSX/10.4/OmniPlan-#{version}.dmg"
   homepage 'http://www.omnigroup.com/products/omniplan/'
+  license :unknown
 
   app 'OmniPlan.app'
 end
diff --git a/Casks/onepassword-beta.rb b/Casks/onepassword-beta.rb
index d2f2215be02df8..c28bcbe14e4c2c 100644
--- a/Casks/onepassword-beta.rb
+++ b/Casks/onepassword-beta.rb
@@ -4,6 +4,7 @@ class OnepasswordBeta < Cask
 
   url "https://aws.cachefly.net/dist/1P/mac4/1Password-#{version}.zip"
   homepage 'https://agilebits.com/onepassword'
+  license :closed
 
   app '1Password 4.app'
 end
diff --git a/Casks/onepassword3.rb b/Casks/onepassword3.rb
index ad2b23f27bfd6f..73418e1fc6e49a 100644
--- a/Casks/onepassword3.rb
+++ b/Casks/onepassword3.rb
@@ -4,6 +4,7 @@ class Onepassword3 < Cask
 
   url "https://d13itkw33a7sus.cloudfront.net/dist/1P/mac/1Password-#{version}.zip"
   homepage 'https://agilebits.com/onepassword'
+  license :closed
 
   app '1Password.app'
 end
diff --git a/Casks/onyx-lion.rb b/Casks/onyx-lion.rb
index c901b3f93ff0be..33a8fd476e0ca0 100644
--- a/Casks/onyx-lion.rb
+++ b/Casks/onyx-lion.rb
@@ -4,6 +4,7 @@ class OnyxLion < Cask
 
   url 'http://www.titanium.free.fr/download/107/OnyX.dmg'
   homepage 'http://www.titanium.free.fr/downloadonyx.php'
+  license :unknown
 
   app 'OnyX.app'
 end
diff --git a/Casks/onyx-mountainlion.rb b/Casks/onyx-mountainlion.rb
index b94164159280a4..d9898562c98507 100644
--- a/Casks/onyx-mountainlion.rb
+++ b/Casks/onyx-mountainlion.rb
@@ -4,6 +4,7 @@ class OnyxMountainlion < Cask
 
   url 'http://joel.barriere.pagesperso-orange.fr/dl/108/OnyX.dmg'
   homepage 'http://www.titanium.free.fr/downloadonyx.php'
+  license :unknown
 
   app 'OnyX.app'
 end
diff --git a/Casks/onyx-snowleopard.rb b/Casks/onyx-snowleopard.rb
index fb334562d857ff..91abf99f2df873 100644
--- a/Casks/onyx-snowleopard.rb
+++ b/Casks/onyx-snowleopard.rb
@@ -4,6 +4,7 @@ class OnyxSnowleopard < Cask
 
   url 'http://www.titanium.free.fr/download/106/OnyX.dmg'
   homepage 'http://www.titanium.free.fr/downloadonyx.php'
+  license :unknown
 
   app 'OnyX.app'
 end
diff --git a/Casks/openemu-experimental.rb b/Casks/openemu-experimental.rb
index 2ccbd1ef60cebb..ffa95f48c59bf2 100644
--- a/Casks/openemu-experimental.rb
+++ b/Casks/openemu-experimental.rb
@@ -4,6 +4,7 @@ class OpenemuExperimental < Cask
 
   url "https://github.com/OpenEmu/OpenEmu/releases/download/v#{version}/OpenEmu_#{version}-experimental.zip"
   homepage 'http://openemu.org/'
+  license :oss
 
   app 'OpenEmu.app'
 end
diff --git a/Casks/openoffice-fr.rb b/Casks/openoffice-fr.rb
index 28826cafa3b946..c811aaf4f835ce 100644
--- a/Casks/openoffice-fr.rb
+++ b/Casks/openoffice-fr.rb
@@ -4,6 +4,7 @@ class OpenofficeFr < Cask
 
   url "http://downloads.sourceforge.net/project/openofficeorg.mirror/#{version}/binaries/fr/Apache_OpenOffice_#{version}_MacOS_x86_install_fr.dmg"
   homepage 'http://www.openoffice.org/fr/Telecharger/'
+  license :oss
 
   app 'OpenOffice.app'
 end
diff --git a/Casks/openrefine.rb b/Casks/openrefine.rb
index e005f1f24cb944..9bd7e5b7f780c2 100644
--- a/Casks/openrefine.rb
+++ b/Casks/openrefine.rb
@@ -4,6 +4,7 @@ class Openrefine < Cask
 
   url "https://github.com/OpenRefine/OpenRefine/releases/download/#{version}/openrefine-mac-#{version}.dmg"
   homepage 'http://openrefine.org/'
+  license :oss
 
   app 'OpenRefine.app'
 end
diff --git a/Casks/opera-developer.rb b/Casks/opera-developer.rb
index 4589a51d8f953b..42c2b381a4034c 100644
--- a/Casks/opera-developer.rb
+++ b/Casks/opera-developer.rb
@@ -4,6 +4,7 @@ class OperaDeveloper < Cask
 
   url "http://get.geo.opera.com/pub/opera-developer/#{version}/mac/Opera_Developer_#{version}_Setup.dmg"
   homepage 'http://www.opera.com/developer'
+  license :unknown
 
   app 'Opera Developer.app'
 end
diff --git a/Casks/papers2.rb b/Casks/papers2.rb
index 5e5dfa14e32d53..936e56ac8c892e 100644
--- a/Casks/papers2.rb
+++ b/Casks/papers2.rb
@@ -4,6 +4,7 @@ class Papers2 < Cask
 
   url 'http://www.papersapp.com/papers2/download'
   homepage 'http://www.papersapp.com/mac/'
+  license :unknown
 
   app 'Papers2.app'
 end
diff --git a/Casks/parallels8.rb b/Casks/parallels8.rb
index 267ba49a80724e..baf97c43c6297f 100644
--- a/Casks/parallels8.rb
+++ b/Casks/parallels8.rb
@@ -4,6 +4,7 @@ class Parallels8 < Cask
 
   url 'http://www.parallels.com/directdownload/pd8'
   homepage 'http://www.parallels.com/products/desktop/'
+  license :closed
 
   pkg 'Install.mpkg'
 end
diff --git a/Casks/paraview-lion-python27-nightly.rb b/Casks/paraview-lion-python27-nightly.rb
index b67d4972e30457..c6128844eab5fd 100644
--- a/Casks/paraview-lion-python27-nightly.rb
+++ b/Casks/paraview-lion-python27-nightly.rb
@@ -4,6 +4,7 @@ class ParaviewLionPython27Nightly < Cask
 
   url 'http://www.paraview.org/paraview-downloads/download.php?submit=Download&version=nightly&type=binary&os=osx&downloadFile=ParaView-Darwin-64bit-Lion-Python27-NIGHTLY.dmg'
   homepage 'http://www.paraview.org/'
+  license :unknown
 
   app 'paraview.app'
   caveats <<-EOS.undent
diff --git a/Casks/paraview-lion-python27.rb b/Casks/paraview-lion-python27.rb
index 5e9f08a83eb3e3..fb473ffe895382 100644
--- a/Casks/paraview-lion-python27.rb
+++ b/Casks/paraview-lion-python27.rb
@@ -4,6 +4,7 @@ class ParaviewLionPython27 < Cask
 
   url "http://www.paraview.org/paraview-downloads/download.php?submit=Download&version=v4.1&type=binary&os=osx&downloadFile=ParaView-#{version}-Darwin-64bit-Lion-Python27.dmg"
   homepage 'http://www.paraview.org/'
+  license :unknown
 
   app 'paraview.app'
   caveats <<-EOS.undent
diff --git a/Casks/paraview-nightly.rb b/Casks/paraview-nightly.rb
index 4e5533dba86af8..7b5ed8d1bac4da 100644
--- a/Casks/paraview-nightly.rb
+++ b/Casks/paraview-nightly.rb
@@ -4,6 +4,7 @@ class ParaviewNightly < Cask
 
   url 'http://www.paraview.org/paraview-downloads/download.php?submit=Download&version=nightly&type=binary&os=osx&downloadFile=ParaView-Darwin-64bit-NIGHTLY.dmg'
   homepage 'http://www.paraview.org/'
+  license :unknown
 
   app 'paraview.app'
     caveats <<-EOS.undent
diff --git a/Casks/phpstorm-eap.rb b/Casks/phpstorm-eap.rb
index be9be30854adea..720a1503ab5bef 100644
--- a/Casks/phpstorm-eap.rb
+++ b/Casks/phpstorm-eap.rb
@@ -4,6 +4,7 @@ class PhpstormEap < Cask
 
   url "http://download.jetbrains.com/webide/PhpStorm-EAP-#{version}.dmg"
   homepage 'http://confluence.jetbrains.com/display/PhpStorm/PhpStorm+Early+Access+Program'
+  license :unknown
 
   app 'PhpStorm EAP.app'
 end
diff --git a/Casks/processing3.rb b/Casks/processing3.rb
index e9176aadfb20c8..f141640ba03632 100644
--- a/Casks/processing3.rb
+++ b/Casks/processing3.rb
@@ -4,6 +4,7 @@ class Processing3 < Cask
 
   url "http://download.processing.org/processing-#{version}-macosx.zip"
   homepage 'http://processing.org/'
+  license :unknown
 
   app 'Processing.app'
 end
diff --git a/Casks/quicktime-player7.rb b/Casks/quicktime-player7.rb
index d7066ddf5bd771..af0e0921e32a4f 100644
--- a/Casks/quicktime-player7.rb
+++ b/Casks/quicktime-player7.rb
@@ -4,6 +4,7 @@ class QuicktimePlayer7 < Cask
 
   url "http://support.apple.com/downloads/DL923/en_US/QuickTimePlayer#{version}_SnowLeopard.dmg"
   homepage 'http://support.apple.com/kb/dl923'
+  license :closed
 
   pkg "QuickTimePlayer#{version}_SnowLeopard.pkg"
   uninstall :pkgutil => "com.apple.pkg.QuickTimePlayer#{version}_SnowLeopard",
diff --git a/Casks/rstudio-preview.rb b/Casks/rstudio-preview.rb
index ed3b5d4ad318b7..c71deea7016fa0 100644
--- a/Casks/rstudio-preview.rb
+++ b/Casks/rstudio-preview.rb
@@ -4,6 +4,7 @@ class RstudioPreview < Cask
 
   url "https://s3.amazonaws.com/rstudio-dailybuilds/RStudio-#{version}.dmg"
   homepage 'http://www.rstudio.com/ide/download/preview'
+  license :unknown
 
   app 'RStudio.app'
 end
diff --git a/Casks/rubymine-eap.rb b/Casks/rubymine-eap.rb
index 14bf0177e6c53a..1e3a0de58bb1d4 100644
--- a/Casks/rubymine-eap.rb
+++ b/Casks/rubymine-eap.rb
@@ -4,6 +4,7 @@ class RubymineEap < Cask
 
   url "http://download.jetbrains.com/ruby/RubyMine-#{version}.dmg"
   homepage 'http://confluence.jetbrains.com/display/RUBYDEV/RubyMine+EAP'
+  license :unknown
 
   app 'RubyMine EAP.app'
 end
diff --git a/Casks/screenflow3.rb b/Casks/screenflow3.rb
index bc7b0b58145d36..f7f4eb80331fb9 100644
--- a/Casks/screenflow3.rb
+++ b/Casks/screenflow3.rb
@@ -4,6 +4,7 @@ class Screenflow3 < Cask
 
   url "http://www.telestream.net/download-files/screenflow/3-0/ScreenFlow-#{version}.dmg"
   homepage 'http://www.telestream.net/screenflow/'
+  license :unknown
 
   app 'ScreenFlow.app'
 end
diff --git a/Casks/sequel-pro-nightly.rb b/Casks/sequel-pro-nightly.rb
index fe74097d339fdb..50e2747b9b6637 100644
--- a/Casks/sequel-pro-nightly.rb
+++ b/Casks/sequel-pro-nightly.rb
@@ -4,6 +4,7 @@ class SequelProNightly < Cask
 
   url 'http://nightly.sequelpro.com/builds/Sequel_Pro_r0c2ea8b95e.dmg'
   homepage 'http://nightly.sequelpro.com/'
+  license :unknown
 
   app 'Sequel Pro.app'
 end
diff --git a/Casks/sketch-beta.rb b/Casks/sketch-beta.rb
index 4adf2942cefa67..739d365e207e21 100644
--- a/Casks/sketch-beta.rb
+++ b/Casks/sketch-beta.rb
@@ -4,6 +4,7 @@ class SketchBeta < Cask
 
   url 'https://rink.hockeyapp.net/api/2/apps/0172d48cceec171249a8d850fb16276b/app_versions/37?format=zip&avtoken=985ff642ddb110cfeb7998ffbc5993ef80bbfcf7'
   homepage 'http://bohemiancoding.com/sketch/beta/'
+  license :unknown
 
   app 'Sketch Beta.app'
 end
diff --git a/Casks/sketchup-pro.rb b/Casks/sketchup-pro.rb
index e2ce3079e76f62..242bf8c3c8665d 100644
--- a/Casks/sketchup-pro.rb
+++ b/Casks/sketchup-pro.rb
@@ -5,6 +5,7 @@ class SketchupPro < Cask
   # downloads can be found at http://www.sketchup.com/download/all
   url 'https://dl.trimble.com/sketchup/SketchUpPro-en.dmg'
   homepage 'http://www.sketchup.com/intl/en/'
+  license :unknown
 
   suite 'SketchUp 2014'
 end
diff --git a/Casks/skitch1.rb b/Casks/skitch1.rb
index 08ff601ac74b33..a5090fead7963b 100644
--- a/Casks/skitch1.rb
+++ b/Casks/skitch1.rb
@@ -4,6 +4,7 @@ class Skitch1 < Cask
 
   url 'http://evernote.com/download/get.php?file=SkitchMac_v1'
   homepage 'http://blog.evernote.com/blog/2012/11/21/skitch-and-evernote-a-letter-from-keith-lang/'
+  license :unknown
 
   app 'Skitch.app'
 end
diff --git a/Casks/smcfancontrol-beta.rb b/Casks/smcfancontrol-beta.rb
index 77c178a855bd29..6c4587259c80ea 100644
--- a/Casks/smcfancontrol-beta.rb
+++ b/Casks/smcfancontrol-beta.rb
@@ -4,6 +4,7 @@ class SmcfancontrolBeta < Cask
 
   url 'https://github.com/hholtmann/smcFanControl/releases/download/v2.5%C3%9F/smcFanControl_2_5beta.zip'
   homepage 'https://github.com/hholtmann/smcFanControl'
+  license :oss
 
   app 'smcFanControl.app'
 end
diff --git a/Casks/soundflower-ultraschall.rb b/Casks/soundflower-ultraschall.rb
index 907fbc1ed2c95c..69674199ce00c8 100644
--- a/Casks/soundflower-ultraschall.rb
+++ b/Casks/soundflower-ultraschall.rb
@@ -4,6 +4,7 @@ class SoundflowerUltraschall < Cask
 
   url "https://github.com/MariusE/Soundflower-Ultraschall-Edition/releases/download/#{version}/Soundflower-#{version}.dmg"
   homepage 'https://github.com/MariusE/Soundflower-Ultraschall-Edition'
+  license :oss
 
   pkg 'Soundflower.pkg', :allow_untrusted => true
   uninstall :pkgutil => 'com.cycling74.soundflower*',
diff --git a/Casks/subethaedit3.rb b/Casks/subethaedit3.rb
index 9003d40509781b..a65c3b43616fca 100644
--- a/Casks/subethaedit3.rb
+++ b/Casks/subethaedit3.rb
@@ -4,6 +4,7 @@ class Subethaedit3 < Cask
 
   url 'http://subethaedit.net/downloads/SubEthaEdit-354.zip'
   homepage 'http://www.codingmonkeys.de/subethaedit/'
+  license :closed
 
   app 'SubEthaEdit.app'
 end
diff --git a/Casks/sublime-text-dev.rb b/Casks/sublime-text-dev.rb
index a9b9337b41032f..90f149e057e30f 100644
--- a/Casks/sublime-text-dev.rb
+++ b/Casks/sublime-text-dev.rb
@@ -4,6 +4,7 @@ class SublimeTextDev < Cask
 
   url 'http://c758482.r82.cf2.rackcdn.com/Sublime%20Text%20Build%203064.dmg'
   homepage 'http://www.sublimetext.com/3dev'
+  license :closed
 
   app 'Sublime Text.app'
   binary 'Sublime Text.app/Contents/SharedSupport/bin/subl'
diff --git a/Casks/sublime-text3.rb b/Casks/sublime-text3.rb
index 32dcda05b32b00..6f06f14416a5b9 100644
--- a/Casks/sublime-text3.rb
+++ b/Casks/sublime-text3.rb
@@ -5,6 +5,7 @@ class SublimeText3 < Cask
   url 'http://c758482.r82.cf2.rackcdn.com/Sublime%20Text%20Build%203065.dmg'
   appcast 'http://www.sublimetext.com/updates/3/stable/appcast_osx.xml'
   homepage 'http://www.sublimetext.com/3'
+  license :closed
 
   app 'Sublime Text.app'
   binary 'Sublime Text.app/Contents/SharedSupport/bin/subl'
diff --git a/Casks/textexpander3.rb b/Casks/textexpander3.rb
index 4a9078b8e62a2e..38810efe4bcd31 100644
--- a/Casks/textexpander3.rb
+++ b/Casks/textexpander3.rb
@@ -4,6 +4,7 @@ class Textexpander3 < Cask
 
   url "http://cdn.smilesoftware.com/TextExpander_#{version}.zip"
   homepage 'http://www.smilesoftware.com/TextExpander/index.html'
+  license :unknown
 
   app 'TextExpander.app'
 end
diff --git a/Casks/thunderbird-beta.rb b/Casks/thunderbird-beta.rb
index 4684118975ece5..01b7f6daf7edf0 100644
--- a/Casks/thunderbird-beta.rb
+++ b/Casks/thunderbird-beta.rb
@@ -4,6 +4,7 @@ class ThunderbirdBeta < Cask
 
   url "https://download-installer.cdn.mozilla.net/pub/thunderbird/releases/#{version}/mac/en-US/Thunderbird%20#{version}.dmg"
   homepage 'https://www.mozilla.org/en-US/thunderbird/all-beta.html'
+  license :oss
 
   app 'Thunderbird.app'
 end
diff --git a/Casks/thunderbird-cn.rb b/Casks/thunderbird-cn.rb
index 8fca2cae7c1a84..92dac190ef429b 100644
--- a/Casks/thunderbird-cn.rb
+++ b/Casks/thunderbird-cn.rb
@@ -4,6 +4,7 @@ class ThunderbirdCn < Cask
 
   url "http://ftp.mozilla.org/pub/mozilla.org/thunderbird/releases/#{version}/mac/zh-CN/Thunderbird%20#{version}.dmg"
   homepage 'https://www.mozilla.org/zh-CN/thunderbird/'
+  license :oss
 
   app 'Thunderbird.app'
 end
diff --git a/Casks/thunderbird-fr.rb b/Casks/thunderbird-fr.rb
index 8e83e9cb46ded3..cdcc8a7aaaa13d 100644
--- a/Casks/thunderbird-fr.rb
+++ b/Casks/thunderbird-fr.rb
@@ -4,6 +4,7 @@ class ThunderbirdFr < Cask
 
   url "http://download-installer.cdn.mozilla.net/pub/thunderbird/releases/#{version}/mac/fr/Thunderbird%20#{version}.dmg"
   homepage 'https://www.mozilla.org/fr/thunderbird/'
+  license :oss
 
   app 'Thunderbird.app'
 end
diff --git a/Casks/thunderbird-ja.rb b/Casks/thunderbird-ja.rb
index d555ea7998bdaa..fe9e78ed372cbd 100644
--- a/Casks/thunderbird-ja.rb
+++ b/Casks/thunderbird-ja.rb
@@ -4,6 +4,7 @@ class ThunderbirdJa < Cask
 
   url "https://download.mozilla.org/?product=thunderbird-#{version}&os=osx&lang=ja-JP-mac"
   homepage 'http://www.mozilla.jp/thunderbird/'
+  license :oss
 
   app 'Thunderbird.app'
 end
diff --git a/Casks/timemachinescheduler-beta.rb b/Casks/timemachinescheduler-beta.rb
index 56af1e9e6bc6a9..e2bd33273c11ed 100644
--- a/Casks/timemachinescheduler-beta.rb
+++ b/Casks/timemachinescheduler-beta.rb
@@ -4,6 +4,7 @@ class TimemachineschedulerBeta < Cask
 
   url 'http://www.klieme.com/Downloads/TimeMachineScheduler/TimeMachineScheduler_4.0b3Full.zip'
   homepage 'http://www.klieme.com/TimeMachineScheduler.html'
+  license :unknown
 
   nested_container 'TimeMachineScheduler_4.0b3.dmg'
   app 'TimeMachineScheduler.app'
diff --git a/Casks/tower1.rb b/Casks/tower1.rb
index d906565c2326d9..707c46649dc626 100644
--- a/Casks/tower1.rb
+++ b/Casks/tower1.rb
@@ -5,6 +5,7 @@ class Tower1 < Cask
   url 'http://www.git-tower.com/download-v1'
   appcast 'https://macapps.fournova.com/tower1-1060/updates.xml'
   homepage 'http://www.git-tower.com/'
+  license :unknown
 
   app 'Tower.app'
 end
diff --git a/Casks/transmit3.rb b/Casks/transmit3.rb
index c14df27162d210..1d7bdb3eda8ef6 100644
--- a/Casks/transmit3.rb
+++ b/Casks/transmit3.rb
@@ -4,6 +4,7 @@ class Transmit3 < Cask
 
   url "http://panic.com/museum/transmit/Transmit%20#{version}.zip"
   homepage 'https://www.panic.com/transmit'
+  license :unknown
 
   app 'Transmit.app'
 end
diff --git a/Casks/truecrypt71a.rb b/Casks/truecrypt71a.rb
index 7844038c12cdbd..fa9dc5965e02a3 100644
--- a/Casks/truecrypt71a.rb
+++ b/Casks/truecrypt71a.rb
@@ -4,6 +4,7 @@ class Truecrypt71a < Cask
 
   url "https://github.com/DrWhax/truecrypt-archive/raw/231bb2f64564a087de338a68fb9498320eecfe2a/TrueCrypt%20#{version}%20Mac%20OS%20X.dmg"
   homepage 'http://truecrypt.sourceforge.net/'
+  license :oss
 
   pkg  "TrueCrypt #{version}.mpkg"
   caveats do
diff --git a/Casks/tunnelblick-beta.rb b/Casks/tunnelblick-beta.rb
index 38ce8c586fdc64..2048a1b0a7d218 100644
--- a/Casks/tunnelblick-beta.rb
+++ b/Casks/tunnelblick-beta.rb
@@ -4,6 +4,7 @@ class TunnelblickBeta < Cask
 
   url "http://downloads.sourceforge.net/project/tunnelblick/All%20files/Tunnelblick_#{version}.dmg"
   homepage 'https://code.google.com/p/tunnelblick/'
+  license :oss
 
   app 'Tunnelblick.app'
 end
diff --git a/Casks/typinator59.rb b/Casks/typinator59.rb
index dbe4594f74ec5d..4ffec662e0b5a5 100644
--- a/Casks/typinator59.rb
+++ b/Casks/typinator59.rb
@@ -4,6 +4,7 @@ class Typinator59 < Cask
 
   url 'http://www.ergonis.com/downloads/archive/typinator/Typinator59-Install.dmg'
   homepage 'http://www.ergonis.com/products/typinator/'
+  license :unknown
 
   app 'Typinator.app'
 end
diff --git a/Casks/utorrent-beta.rb b/Casks/utorrent-beta.rb
index 42505ff4c088f9..137495d2b3e8b9 100644
--- a/Casks/utorrent-beta.rb
+++ b/Casks/utorrent-beta.rb
@@ -4,6 +4,7 @@ class UtorrentBeta < Cask
 
   url 'http://download-new.utorrent.com/endpoint/utmac/os/osx/track/beta/'
   homepage 'http://www.utorrent.com/'
+  license :unknown
 
   app 'uTorrent.app'
 end
diff --git a/Casks/vagrant127.rb b/Casks/vagrant127.rb
index 457d34cc1c0952..6e69051a999ee7 100644
--- a/Casks/vagrant127.rb
+++ b/Casks/vagrant127.rb
@@ -4,6 +4,7 @@ class Vagrant127 < Cask
 
   url "http://files.vagrantup.com/packages/7ec0ee1d00a916f80b109a298bab08e391945243/Vagrant-#{version}.dmg"
   homepage 'http://www.vagrantup.com'
+  license :unknown
 
   pkg 'Vagrant.pkg'
   uninstall :script => { :executable => 'uninstall.tool', :input => %w[Yes] }
diff --git a/Casks/vagrant143.rb b/Casks/vagrant143.rb
index bc56278501b593..0863e627271014 100644
--- a/Casks/vagrant143.rb
+++ b/Casks/vagrant143.rb
@@ -4,6 +4,7 @@ class Vagrant143 < Cask
 
   url "https://dl.bintray.com/mitchellh/vagrant/Vagrant-#{version}.dmg"
   homepage 'http://www.vagrantup.com'
+  license :unknown
 
   pkg 'Vagrant.pkg'
   uninstall :script => 'uninstall.tool', :input => %w[Yes]
diff --git a/Casks/vagrant163.rb b/Casks/vagrant163.rb
index 3be95bdec6be62..cc41452b92c7e1 100644
--- a/Casks/vagrant163.rb
+++ b/Casks/vagrant163.rb
@@ -4,6 +4,7 @@ class Vagrant163 < Cask
 
   url "https://dl.bintray.com/mitchellh/vagrant/vagrant_#{version}.dmg"
   homepage 'http://www.vagrantup.com'
+  license :unknown
 
   pkg 'Vagrant.pkg'
   uninstall :script => { :executable => 'uninstall.tool', :input => %w[Yes] }
diff --git a/Casks/virtualbox422492790.rb b/Casks/virtualbox422492790.rb
index a1630476b33c38..ea7a28b8b35ba6 100644
--- a/Casks/virtualbox422492790.rb
+++ b/Casks/virtualbox422492790.rb
@@ -4,6 +4,7 @@ class Virtualbox422492790 < Cask
 
   url "http://download.virtualbox.org/virtualbox/4.2.24/VirtualBox-#{version}-OSX.dmg"
   homepage 'http://www.virtualbox.org'
+  license :unknown
 
   pkg 'VirtualBox.pkg'
   uninstall :script => { :executable => 'VirtualBox_Uninstall.tool', :args => %w[--unattended] }
diff --git a/Casks/virtualbox431293733.rb b/Casks/virtualbox431293733.rb
index 10df48da8cb650..d51570cd8ed334 100644
--- a/Casks/virtualbox431293733.rb
+++ b/Casks/virtualbox431293733.rb
@@ -4,6 +4,7 @@ class Virtualbox431293733 < Cask
 
   url "http://download.virtualbox.org/virtualbox/4.3.12/VirtualBox-#{version}-OSX.dmg"
   homepage 'http://www.virtualbox.org'
+  license :unknown
 
   pkg 'VirtualBox.pkg'
   uninstall :script => { :executable => 'VirtualBox_Uninstall.tool', :args => %w[--unattended] }
diff --git a/Casks/virtualbox43691406.rb b/Casks/virtualbox43691406.rb
index ea061ff5838432..43ec436817ad2c 100644
--- a/Casks/virtualbox43691406.rb
+++ b/Casks/virtualbox43691406.rb
@@ -4,6 +4,7 @@ class Virtualbox43691406 < Cask
 
   url "http://download.virtualbox.org/virtualbox/4.3.6/VirtualBox-#{version}-OSX.dmg"
   homepage 'http://www.virtualbox.org'
+  license :unknown
 
   pkg 'VirtualBox.pkg'
   uninstall :script => { :executable => 'VirtualBox_Uninstall.tool', :args => %w[--unattended] }
diff --git a/Casks/vlc-nightly.rb b/Casks/vlc-nightly.rb
index 0322c98e23bcf1..d5993c2261d1b5 100644
--- a/Casks/vlc-nightly.rb
+++ b/Casks/vlc-nightly.rb
@@ -4,6 +4,7 @@ class VlcNightly < Cask
 
   url 'http://nightlies.videolan.org/build/macosx-intel/last'
   homepage 'http://www.videolan.org/vlc/'
+  license :oss
 
   app 'vlc-3.0.0-git/VLC.app'
 end
diff --git a/Casks/vmware-fusion-6.rb b/Casks/vmware-fusion-6.rb
index 1e53f511e5d32e..0910f8f681d0a5 100644
--- a/Casks/vmware-fusion-6.rb
+++ b/Casks/vmware-fusion-6.rb
@@ -4,6 +4,7 @@ class VmwareFusion6 < Cask
 
   url "https://download3.vmware.com/software/fusion/file/VMware-Fusion-#{version}-light.dmg"
   homepage 'http://www.vmware.com/products/fusion/'
+  license :closed
 
   binary 'VMware Fusion.app/Contents/Library/vmrun'
   app 'VMware Fusion.app'
diff --git a/Casks/vox-legacy.rb b/Casks/vox-legacy.rb
index 41049822dfc648..17f32a6e9bc415 100644
--- a/Casks/vox-legacy.rb
+++ b/Casks/vox-legacy.rb
@@ -4,6 +4,7 @@ class VoxLegacy < Cask
 
   url "http://cloud.coppertino.com/vox/Vox_#{version}.dmg"
   homepage 'http://coppertino.com/vox/'
+  license :unknown
 
   app 'Vox.app'
 end
diff --git a/Casks/webkit-nightly.rb b/Casks/webkit-nightly.rb
index 6a366d1dfdfd46..6a987def403e4e 100644
--- a/Casks/webkit-nightly.rb
+++ b/Casks/webkit-nightly.rb
@@ -4,6 +4,7 @@ class WebkitNightly < Cask
 
   url 'http://builds.nightly.webkit.org/files/trunk/mac/WebKit-SVN-r159487.dmg'
   homepage 'http://nightly.webkit.org/'
+  license :unknown
 
   app 'WebKit.app'
 end
diff --git a/Casks/webstorm-eap.rb b/Casks/webstorm-eap.rb
index ff043a63e1e183..8bdbd7f6ed504a 100644
--- a/Casks/webstorm-eap.rb
+++ b/Casks/webstorm-eap.rb
@@ -4,6 +4,7 @@ class WebstormEap < Cask
 
   url "http://download-cf.jetbrains.com/webstorm/WebStorm-EAP-#{version}.dmg"
   homepage 'http://confluence.jetbrains.com/display/WI/WebStorm+9+EAP'
+  license :unknown
 
   app 'Webstorm 9 EAP.app'
 end
diff --git a/Casks/wimoweh-beta.rb b/Casks/wimoweh-beta.rb
index 268e14f43f21b4..7390f1bbf7c929 100644
--- a/Casks/wimoweh-beta.rb
+++ b/Casks/wimoweh-beta.rb
@@ -4,6 +4,7 @@ class WimowehBeta < Cask
 
   url 'http://www.serialangels.co.uk/sa-content/uploads/2013/12/Wimoweh.0.66.BETA_.zip'
   homepage 'http://www.serialangels.co.uk/index.php/wimoweh/'
+  license :unknown
 
   app 'Wimoweh.app'
 end
diff --git a/Casks/wireshark-dev.rb b/Casks/wireshark-dev.rb
index ed769647658fbc..9a5095f6940655 100644
--- a/Casks/wireshark-dev.rb
+++ b/Casks/wireshark-dev.rb
@@ -4,6 +4,7 @@ class WiresharkDev < Cask
 
   url "http://www.wireshark.org/download/osx/Wireshark%20#{version}%20Intel%2064.dmg"
   homepage 'http://www.wireshark.org'
+  license :unknown
 
   pkg "Wireshark #{version} Intel 64.pkg"
   uninstall :pkgutil => 'org.wireshark.*'
diff --git a/Casks/xee22.rb b/Casks/xee22.rb
index bba22392967a32..45d3dd90baf568 100644
--- a/Casks/xee22.rb
+++ b/Casks/xee22.rb
@@ -4,6 +4,7 @@ class Xee22 < Cask
 
   url "https://xee.googlecode.com/files/Xee#{version}.zip"
   homepage 'https://code.google.com/p/xee/'
+  license :oss
 
   app 'Xee.app'
 end
diff --git a/Casks/zephyros52.rb b/Casks/zephyros52.rb
index f333cd7583a991..3d018becde3bea 100644
--- a/Casks/zephyros52.rb
+++ b/Casks/zephyros52.rb
@@ -5,6 +5,7 @@ class Zephyros52 < Cask
 
   url "https://raw.github.com/sdegutis/zephyros/master/Builds/Zephyros-#{version}.app.tar.gz"
   homepage 'https://github.com/sdegutis/zephyros'
+  license :oss
 
   app 'Zephyros.app'
 end