diff --git a/zh-cn/application-dev/database/database-mdds-guidelines.md b/zh-cn/application-dev/database/database-mdds-guidelines.md
index 7adb61e7f36deadc98b3c00cce05012a9b097375..25ae5e3e11ac6ed129498b21bd83b25a1fbc312e 100644
--- a/zh-cn/application-dev/database/database-mdds-guidelines.md
+++ b/zh-cn/application-dev/database/database-mdds-guidelines.md
@@ -162,9 +162,9 @@ OpenHarmony系统中的分布式数据服务模块为开发者提供下面几种
            // get deviceIds
            let deviceIds = [];
            if (devManager != null) {
-               var deviceList = devManager.getTrustedDeviceListSync();
-               for (var i = 0; i < deviceList.length; i++) {
-                   deviceIds[i] = deviceList[i].deviceId;
+               var devices = devManager.getTrustedDeviceListSync();
+               for (var i = 0; i < devices.length; i++) {
+                   deviceIds[i] = devices[i].deviceId;
                }
            }
            try{