diff --git a/server.py b/server.py
index 35e41fbb14b1da5d53a0d466a05315bf26936e5c..6190e2e8bf786686cc92cf116aeed6ce3a19a224 100644
--- a/server.py
+++ b/server.py
@@ -11,6 +11,7 @@ import sched
 import traceback
 import string
 from socket import gethostname
+from ipaddress import ip_address, ip_network
 
 app = Flask(__name__)