diff --git a/doc/ELASTIC_CTR.md b/doc/ELASTIC_CTR.md
index 5a1a089f697e8e437f1b539d65bb80d47a4764c3..bb7e61a69080a10c5c1b05fcbe2a6491f9733922 100755
--- a/doc/ELASTIC_CTR.md
+++ b/doc/ELASTIC_CTR.md
@@ -131,7 +131,7 @@ $ kubectl label nodes $NODE_NAME nodeType=model
 ## 3.3 启动文件服务器
 
 ```bash
-kubectl apply -f fileserver.yaml
+$ kubectl apply -f fileserver.yaml
 ```
 
 运行file server的启动脚本kubectl apply -f ftp.yaml，启动文件服务器