diff --git a/tamper/luanginxmore.py b/tamper/luanginxmore.py
index 29822b26b..3fb789663 100644
--- a/tamper/luanginxmore.py
+++ b/tamper/luanginxmore.py
@@ -8,8 +8,10 @@ See the file 'LICENSE' for copying permission
 import random
 import string
 import sys
+import os
 
 from lib.core.compat import xrange
+from lib.core.common import singleTimeWarnMessage
 from lib.core.enums import HINT
 from lib.core.enums import PRIORITY
 from lib.core.settings import DEFAULT_GET_POST_DELIMITER