diff --git a/Casks/d/dosbox-staging.rb b/Casks/d/dosbox-staging.rb
index 2f8c1f40c5..09f1967c6a 100644
--- a/Casks/d/dosbox-staging.rb
+++ b/Casks/d/dosbox-staging.rb
@@ -1,3 +1,6 @@
+# typed: true
+# frozen_string_literal: true
+
 cask "dosbox-staging" do
   version "0.80.1"
   sha256 "5d3cec60552b2a34caa70702b35bdf9ce591cf0b03143802351725a7c729d9fe"
@@ -6,8 +9,8 @@ cask "dosbox-staging" do
   name "DOSBox Staging"
   desc "DOS game emulator"
   homepage "https://github.com/dosbox-staging/dosbox-staging/"
-  
+
   app "DOSBox Staging.app"
 
-  zap trash:"~/Library/Preferences/DOSBox"
+  zap trash: "~/Library/Preferences/DOSBox"
 end