diff --git a/bin/tools/misc.py b/bin/tools/misc.py
index e1128db9cea..7a416052d21 100644
--- a/bin/tools/misc.py
+++ b/bin/tools/misc.py
@@ -34,6 +34,7 @@ import socket
 import sys
 import threading
 import time
+import warnings
 import zipfile
 from datetime import datetime
 from email.MIMEText import MIMEText