diff --git a/server/hallmonitor.py b/server/hallmonitor.py
index 1f1f5a3..09bf769 100644
--- a/server/hallmonitor.py
+++ b/server/hallmonitor.py
@@ -7,7 +7,7 @@ import configparser
 import handler
 import time
 import glob
-import ftncl
+import fcntl
 import signal
 import errno