diff --git a/zh-cn/application-dev/device/sample-server-overview.md b/zh-cn/application-dev/device/sample-server-overview.md
index 10d74586923c1c740d7709f2ebf6741880659a10..477c7f3da70bd874cbd6b4c949c0a53d6389d804 100644
--- a/zh-cn/application-dev/device/sample-server-overview.md
+++ b/zh-cn/application-dev/device/sample-server-overview.md
@@ -30,7 +30,7 @@
         "descriptPackageId": "abcdefg1234567ABCDEFG"
     }],
     "descriptInfo": [{
-        "descriptPackageId": "abcdefg1234567ABCDEFG",
+        "descriptionType": 0,
         "content": "This package is used for update."
     }]
 }