diff --git a/notes/installation/Hadoop单机环境搭建.md b/notes/installation/Hadoop单机环境搭建.md
index fee6d27..185ea90 100644
--- a/notes/installation/Hadoop单机环境搭建.md
+++ b/notes/installation/Hadoop单机环境搭建.md
@@ -209,7 +209,7 @@ sudo systemctl stop firewalld.service
 
 ```shell
 # 如果没有mapred-site.xml，则拷贝一份样例文件后再修改
-cp ./mapred-site.xml.template ./mapred-site.xml
+cp mapred-site.xml.template mapred-site.xml
 ```
 
 ```xml