diff --git a/README-en.md b/README-en.md
index ee3ebc63a16..e72e89de6fa 100644
--- a/README-en.md
+++ b/README-en.md
@@ -126,7 +126,7 @@ curl -sL https://deb.nodesource.com/setup_20.x | sudo -E bash -
 npm install -g node-pre-gyp pnpm@8.3.1
 npm install -g @whyour/qinglong
 qinglong
-# Add the environment variables QL_DIR and QL_DATA_DIR when prompted
+# Add the environment variables QL_DIR and QL_DATA_DIR when prompted, QL_DATA_DIR must end with /data.
 export QL_DIR=""
 export QL_DATA_DIR=""
 # Run again
diff --git a/README.md b/README.md
index d273affa482..c8e60c9be5b 100644
--- a/README.md
+++ b/README.md
@@ -128,7 +128,7 @@ curl -sL https://deb.nodesource.com/setup_20.x | sudo -E bash -
 npm install -g node-pre-gyp pnpm@8.3.1
 npm install -g @whyour/qinglong
 qinglong
-# 根据提示增加环境变量 QL_DIR 和 QL_DATA_DIR
+# 根据提示增加环境变量 QL_DIR 和 QL_DATA_DIR，QL_DATA_DIR 必须以 /data 结尾
 export QL_DIR=""
 export QL_DATA_DIR=""
 # 再次执行
diff --git a/back/services/system.ts b/back/services/system.ts
index e421febd596..cc7aacbac2e 100644
--- a/back/services/system.ts
+++ b/back/services/system.ts
@@ -414,7 +414,7 @@ export default class SystemService {
     try {
       await promiseExec(`rm -rf ${path.join(config.tmpPath, 'data')}`);
       const res = await promiseExec(
-        `cd ${config.tmpPath} && tar -zxvf data.tgz`,
+        `cd ${config.tmpPath} && tar -zxvf ${config.dataTgzFile}`,
       );
       return { code: 200, data: res };
     } catch (error: any) {