diff --git a/Casks/z/zui.rb b/Casks/z/zui.rb
index a8abde8e6df..95f2b994ebe 100644
--- a/Casks/z/zui.rb
+++ b/Casks/z/zui.rb
@@ -9,4 +9,10 @@ cask "zui" do
   homepage "https://zui.brimdata.io/docs"
 
   app "Zui.app"
+
+  zap trash: [
+    "~/Library/Application Support/Zui",
+    "~/Library/Preferences/io.brimdata.zui.plist",
+    "~/Library/Saved Application State/io.brimdata.zui.savedState"
+  ]
 end