diff --git a/stubs/defaultConfig.stub.js b/stubs/defaultConfig.stub.js
index 2477c0c65f55..48f4f535f2d7 100644
--- a/stubs/defaultConfig.stub.js
+++ b/stubs/defaultConfig.stub.js
@@ -748,7 +748,7 @@ module.exports = {
     whitespace: ['responsive'],
     width: ['responsive'],
     wordBreak: ['responsive'],
-    zIndex: ['responsive'],
+    zIndex: ['responsive', 'focus'],
     gap: ['responsive'],
     gridAutoFlow: ['responsive'],
     gridTemplateColumns: ['responsive'],