diff --git a/zh-cn/application-dev/reference/apis/js-apis-net-connection.md b/zh-cn/application-dev/reference/apis/js-apis-net-connection.md
index 51bfc53a6a7df13306bf66150c9a579c74ec24bd..0e05cedae3bffc29fb4702543d984e3c53adb0f4 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-net-connection.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-net-connection.md
@@ -1415,7 +1415,7 @@ netCon.unregister(function (error) {
 
 ### on('netCapabilitiesChange')<sup>8+</sup>
 
-on(type: 'netCapabilitiesChange', callback: Callback<NetCapabilityInfo>): void
+on(type: 'netCapabilitiesChange', callback: Callback\<NetCapabilityInfo>): void
 
 订阅网络能力变化事件。