diff --git a/packages/uui-ref/lib/uui-ref.element.ts b/packages/uui-ref/lib/uui-ref.element.ts
index 286259b36..ad5ecfbd8 100644
--- a/packages/uui-ref/lib/uui-ref.element.ts
+++ b/packages/uui-ref/lib/uui-ref.element.ts
@@ -86,10 +86,7 @@ export class UUIRefElement extends SelectOnlyMixin(
       }
 
       :host([error]) {
-        border: 2px solid var(--uui-color-invalid);
-        box-shadow:
-          0 0 4px 0 var(--uui-color-invalid),
-          inset 0 0 2px 0 var(--uui-color-invalid);
+        border: 1px solid var(--uui-color-invalid);
       }
 
       :host([standalone]) {