diff --git a/api/@ohos.window.d.ts b/api/@ohos.window.d.ts
index d3fffd2bfdf4f893ed5642514928fd3f6958885b..85c75dacb6e3254c4c0897c28b9b56696e11e727 100644
--- a/api/@ohos.window.d.ts
+++ b/api/@ohos.window.d.ts
@@ -2861,6 +2861,14 @@ declare namespace window {
      * @atomicservice
      * @since 12
      */
+    /**
+     * Rect
+     *
+     * @type { Rect }
+     * @syscap SystemCapability.Window.SessionManager
+     * @since arkts {'1.1':'12', '1.2':'20'}
+     * @arkts 1.1&1.2
+     */
     rect: Rect,
 
     /**