diff --git a/plugins/dbms/mssqlserver/filesystem.py b/plugins/dbms/mssqlserver/filesystem.py
index b6fa0a224..8a72e63b7 100644
--- a/plugins/dbms/mssqlserver/filesystem.py
+++ b/plugins/dbms/mssqlserver/filesystem.py
@@ -14,6 +14,7 @@ from lib.core.common import isTechniqueAvailable
 from lib.core.common import posixToNtSlashes
 from lib.core.common import randomStr
 from lib.core.common import readInput
+from lib.core.convert import base64encode
 from lib.core.convert import hexencode
 from lib.core.data import conf
 from lib.core.data import logger