diff --git a/README.md b/README.md
index ef79cc9ac6512edeabdd5cc67cbbdc0ce021bd80..d1b6777bf0b3dc9329006726d964d57c467464ac 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ export WORK_SPACE=/home/xxx/workspace #替换成自己定义的workspace路径
 export PROJ_ROOT=$WORK_SPACE/OpenHarmony
 mkdir $WORK_SPACE
 mkdir $PROJ_ROOT
-cd &PROJ_ROOT
+cd $PROJ_ROOT
 repo init -u https://gitee.com/openharmony/manifest -b refs/tags/OpenHarmony-v3.2-Release --no-repo-verify
 repo sync -c
 repo forall -c 'git lfs pull'
@@ -46,7 +46,7 @@ sudo apt-get update && sudo apt-get install binutils git git-lfs gnupg flex biso
 ## 1.5 执行prebuilts
 进入OpenHarmony源码根目录，执行脚本，安装编译器及二进制工具。
 ```
-cd &PROJ_ROOT
+cd $PROJ_ROOT
 bash build/prebuilts_download.sh
 ```