diff --git a/Casks/hearthstone-eu.rb b/Casks/hearthstone-eu.rb
index e386a2880..3183bac77 100644
--- a/Casks/hearthstone-eu.rb
+++ b/Casks/hearthstone-eu.rb
@@ -6,7 +6,5 @@ class HearthstoneEu < Cask
   homepage 'http://eu.battle.net/hearthstone/en/'
   license :unknown
 
-  caveats do
-    manual_installer 'Hearthstone-Setup-enGB.app'
-  end
+  installer :manual => 'Hearthstone-Setup-enGB.app'
 end
diff --git a/Casks/jdownloader2.rb b/Casks/jdownloader2.rb
index 3834cc6d2..5794bed74 100644
--- a/Casks/jdownloader2.rb
+++ b/Casks/jdownloader2.rb
@@ -10,7 +10,5 @@ class Jdownloader2 < Cask
   homepage 'http://jdownloader.org/download/offline'
   license :unknown
 
-  caveats do
-    manual_installer 'JDownloader Installer.app'
-  end
+  installer :manual => 'JDownloader Installer.app'
 end
diff --git a/Casks/little-snitch-nightly.rb b/Casks/little-snitch-nightly.rb
index 8cbb6e674..c6dee2aa0 100644
--- a/Casks/little-snitch-nightly.rb
+++ b/Casks/little-snitch-nightly.rb
@@ -6,7 +6,5 @@ class LittleSnitchNightly < Cask
   homepage 'http://www.obdev.at/products/littlesnitch/index.html'
   license :unknown
 
-  caveats do
-    manual_installer 'Little Snitch Installer.app'
-  end
+  installer :manual => 'Little Snitch Installer.app'
 end