diff --git a/src/install/UpdateSql.py b/src/install/UpdateSql.py
index c7614f1..a29e4f9 100644
--- a/src/install/UpdateSql.py
+++ b/src/install/UpdateSql.py
@@ -4,7 +4,7 @@ import time
 from Common import *
 
 
-class UpdateSql():
+class UpdateSql:
     def __init__(self, install_path):
         self.root_path = install_path
         self.mariadb_data_path = os.path.join(install_path, 'mariadb', 'data')
@@ -36,7 +36,6 @@ class UpdateSql():
             res2 = stream.read()
             logger.info(res2)
         os.remove(self.init_sql)
-        os.remove(self.mariadb_data_path)
         pass
 
 if __name__ == '__main__':