diff --git a/packages/react-dialog/etc/react-dialog.api.md b/packages/react-dialog/etc/react-dialog.api.md
index 99acdc2a04c0d..815c1b176c621 100644
--- a/packages/react-dialog/etc/react-dialog.api.md
+++ b/packages/react-dialog/etc/react-dialog.api.md
@@ -13,6 +13,9 @@ import * as React_2 from 'react';
 // @public
 export const Dialog: ForwardRefComponent<DialogProps>;
 
+// @public (undocumented)
+export const dialogClassName = "fui-Dialog";
+
 // @public (undocumented)
 export type DialogCommons = {};