diff --git a/api/@ohos.brightness.d.ts b/api/@ohos.brightness.d.ts
index bb8b0988049e37d66b524897ad8c45d672ee5326..adb007cd2caa1996d525b861cac454b7a0137de9 100644
--- a/api/@ohos.brightness.d.ts
+++ b/api/@ohos.brightness.d.ts
@@ -19,6 +19,7 @@ import { AsyncCallback } from './basic';
  * Provides interfaces to control the power of display.
  *
  * @syscap SystemCapability.PowerManager.DisplayPowerManager
+ * @systemapi
  * @since 7
  */
 declare namespace brightness {