diff --git a/Library/Homebrew/deprecate_disable.rb b/Library/Homebrew/deprecate_disable.rb
index 2eb539de20..8140139458 100644
--- a/Library/Homebrew/deprecate_disable.rb
+++ b/Library/Homebrew/deprecate_disable.rb
@@ -24,6 +24,7 @@ module DeprecateDisable
 
   CASK_DEPRECATE_DISABLE_REASONS = {
     discontinued:             "is discontinued upstream",
+    moved_to_mas:             "is now exclusively distributed on the Mac App Store",
     no_longer_available:      "is no longer available upstream",
     no_longer_meets_criteria: "no longer meets the criteria for acceptable casks",
     unmaintained:             "is not maintained upstream",