diff --git a/doc/server_plugin.md b/doc/server_plugin.md
index 5f693dd3..a06baa27 100644
--- a/doc/server_plugin.md
+++ b/doc/server_plugin.md
@@ -174,7 +174,7 @@ New work connection received from frpc (RPC sent after `run_id` is matched with
 
 #### NewUserConn
 
-New user connection received from proxy (only support `tcp`) .
+New user connection received from proxy (only support `tcp`, `stcp`, `https` and `tcpmux`) .
 
 ```
 {
diff --git a/doc/server_plugin_zh.md b/doc/server_plugin_zh.md
index b3f46134..d8d83347 100644
--- a/doc/server_plugin_zh.md
+++ b/doc/server_plugin_zh.md
@@ -166,7 +166,7 @@ Response
 
 #### NewUserConn
 
-新增 `proxy` 连接相关信息 (目前支持 `tcp` 协议)。
+新增 `proxy` 连接相关信息 (目前支持 `tcp`、`stcp`、`https` 和 `tcpmux` 协议)。
 
 ```
 {