diff --git a/plugins/mysql/index.py b/plugins/mysql/index.py
index e8a96d352..3dda72f36 100755
--- a/plugins/mysql/index.py
+++ b/plugins/mysql/index.py
@@ -482,14 +482,13 @@ def initMysql8Pwd():
 
     # 删除冗余账户
     hostname = mw.execShell('hostname')[0]
-    drop_hostname = "drop user ''@'" + hostname + "'"
 
     drop_hostname =  serverdir + '/bin/mysql  --defaults-file=' + \
-        myconf + ' -uroot -p' + pwd + ' -e "drop user ''@' + hostname + '";'
+        myconf + ' -uroot -p' + pwd + ' -e "drop user \'\'@\'' + hostname + '\'";'
     mw.execShell(drop_hostname)
 
     drop_root_hostname =  serverdir + '/bin/mysql  --defaults-file=' + \
-        myconf + ' -uroot -p' + pwd + ' -e "drop user \'root\'@' + hostname + '";'
+        myconf + ' -uroot -p' + pwd + ' -e "drop user \'root\'@\'' + hostname + '\'";'
     mw.execShell(drop_root_hostname)
 
     pSqliteDb('config').where('id=?', (1,)).save('mysql_root', (pwd,))