diff --git a/Casks/witch.rb b/Casks/witch.rb
index 85b1c305ed5..2eac7783d5e 100644
--- a/Casks/witch.rb
+++ b/Casks/witch.rb
@@ -8,6 +8,8 @@ cask :v1 => 'witch' do
     sha256 :no_check
 
     url 'http://manytricks.com/download/witch'
+    appcast 'http://manytricks.com/witch/appcast.xml',
+            :sha256 => '36fc6fa7454af97645ec12d1ee76fed2ff3a4bf6339e931b257fe75bd46f5027'
   end
 
   name 'Witch'