diff --git a/py-kms/pykms_Server.py b/py-kms/pykms_Server.py
index cb131ee..20066af 100755
--- a/py-kms/pykms_Server.py
+++ b/py-kms/pykms_Server.py
@@ -629,7 +629,7 @@ class kmsServerHandler(socketserver.BaseRequestHandler):
 
 serverqueue = Queue.Queue(maxsize = 0)
 serverthread = server_thread(serverqueue, name = "Thread-Srv")
-serverthread.setDaemon(True)
+serverthread.daemon = True
 serverthread.start()
 
 if __name__ == "__main__":