diff --git a/plugins/mysql-apt/scripts/backup.py b/plugins/mysql-apt/scripts/backup.py
index fc17147a2..3b92cf71f 100755
--- a/plugins/mysql-apt/scripts/backup.py
+++ b/plugins/mysql-apt/scripts/backup.py
@@ -20,6 +20,7 @@ sys.path.append(chdir + '/class/core')
 import mw
 import db
 import time
+import re
 
 
 class backupTools:
@@ -45,7 +46,6 @@ class backupTools:
         filename = backup_path + "/db_" + name + "_" + \
             time.strftime('%Y%m%d_%H%M%S', time.localtime()) + ".sql.gz"
 
-        import re
         mysql_root = mw.M('config').dbPos(db_path, db_name).where(
             "id=?", (1,)).getField('mysql_root')
 
diff --git a/plugins/mysql-apt/versions/8.0/install.sh b/plugins/mysql-apt/versions/8.0/install.sh
index 28a2a2df4..1b5a2a86a 100755
--- a/plugins/mysql-apt/versions/8.0/install.sh
+++ b/plugins/mysql-apt/versions/8.0/install.sh
@@ -35,7 +35,7 @@ APT_INSTALL()
 
 wget -O /tmp/mysql-server_${SUFFIX_NAME}.deb-bundle.tar https://cdn.mysql.com/archives/mysql-8.0/mysql-server_${SUFFIX_NAME}.deb-bundle.tar
 chmod +x /tmp/mysql-server_${SUFFIX_NAME}.deb-bundle.tar
-tar vxf /tmp/mysql-server_${SUFFIX_NAME}.deb-bundle.tar
+cd /tmp && tar vxf /tmp/mysql-server_${SUFFIX_NAME}.deb-bundle.tar
 
 apt update -y
 apt install -y libnuma1 libaio1 libmecab2