diff --git a/packages/preset-mini/src/rules/layout.ts b/packages/preset-mini/src/rules/layout.ts
index 010ae2ec15..ad8048cf5e 100644
--- a/packages/preset-mini/src/rules/layout.ts
+++ b/packages/preset-mini/src/rules/layout.ts
@@ -7,6 +7,7 @@ const overflowValues = [
   'clip',
   'visible',
   'scroll',
+  'overlay',
   ...globalKeywords,
 ]