diff --git a/lib/techniques/inband/union/test.py b/lib/techniques/inband/union/test.py
index ce53adf8f..9da5233cf 100644
--- a/lib/techniques/inband/union/test.py
+++ b/lib/techniques/inband/union/test.py
@@ -14,6 +14,7 @@ from lib.core.data import kb
 from lib.core.data import logger
 from lib.core.data import queries
 from lib.core.session import setUnion
+from lib.core.settings import DBMS
 from lib.core.unescaper import unescaper
 from lib.parse.html import htmlParser
 from lib.request.connect import Connect as Request