diff --git a/ArkUI/entry/src/main/ets/pages/ScreenBrightness.ets b/ArkUI/entry/src/main/ets/pages/ScreenBrightness.ets
index 61e013b542c6a58fca855589f72f0371515c47c8..050ff8e297dbdb8b168a249548877c64da5c5a76 100644
--- a/ArkUI/entry/src/main/ets/pages/ScreenBrightness.ets
+++ b/ArkUI/entry/src/main/ets/pages/ScreenBrightness.ets
@@ -46,7 +46,7 @@ struct Index {
             })
             .onClick(() => {
               // Get screen brightness through the getValueSync() method.
-              this.settingsBrightness = settings.getValueSync(this.context, settings.display.SCREEN_BRIGHTNESS_STATUS, 10);
+              this.settingsBrightness = settings.getValueSync(this.context, settings.display.SCREEN_BRIGHTNESS_STATUS, '10');
             })
           // [End getBrightnessOne]
           Button('设置屏幕亮度')