diff --git a/secop-webserver b/secop-webserver
index 557d438..35748e2 100755
--- a/secop-webserver
+++ b/secop-webserver
@@ -5,7 +5,6 @@ from os.path import expanduser
 #  look for sehistory and frappy at usual locations in home directory 
 sys.path.extend([expanduser('~'), expanduser('~/frappy')])
 import argparse
-import socket
 from webserver import server
 from base import Client
 from influxgraph import InfluxGraph
@@ -41,6 +40,5 @@ def parseArgv(argv):
 
 args = parseArgv(sys.argv[1:])
 
-instrument = socket.gethostname().split('.')[0] if args.instrument == 'HOST' else args.instrument
-
+instrument = None if args.instrument=='main' else args.instrument
 server.run(int(args.port), SEHistory(), InfluxGraph, Client, single_instrument=instrument, secop=SecopInteractor)