diff --git a/docker/zlmediakit/config.ini b/docker/zlmediakit/config.ini
index aae76be..e792773 100644
--- a/docker/zlmediakit/config.ini
+++ b/docker/zlmediakit/config.ini
@@ -109,7 +109,7 @@ resetWhenRePlay=1
 #开启后会同时关闭TCP_NODELAY并开启MSG_MORE
 mergeWriteMS=0
 #服务器唯一id，用于触发hook时区别是哪台服务器
-mediaServerId=your_server_id
+mediaServerId=polaris
 #最多等待未初始化的Track时间，单位毫秒，超时之后会忽略未初始化的Track
 wait_track_ready_ms=10000
 #最多等待音频Track收到数据时间，单位毫秒，超时且完全没收到音频数据，忽略音频Track