diff --git a/zh-cn/application-dev/reference/apis/js-apis-net-ethernet.md b/zh-cn/application-dev/reference/apis/js-apis-net-ethernet.md
index 08ed7aa705f49a4f89d483af0ff91e7a9afdfc5d..8e5a376b35426d3872f8ab7de7aa37f90b00b1e1 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-net-ethernet.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-net-ethernet.md
@@ -55,7 +55,7 @@ ethernet.setIfaceConfig("eth0", {
   route: "192.168.xx.xxx",
   gateway: "192.168.xx.xxx",
   netMask: "255.255.255.0",
-  dnsServers: "1.1.1.1",
+  dnsServers: "1.1.1.1"
 }, (error) => {
   if (error) {
     console.log("setIfaceConfig callback error = " + JSON.stringify(error));