diff --git a/bin/nicos_sinq b/bin/nicos_sinq
index e940d5c..715ca3c 100755
--- a/bin/nicos_sinq
+++ b/bin/nicos_sinq
@@ -27,7 +27,8 @@ elif sys.argv[-1] == 'gui':
    guiconfig = f'{nicosroot}/nicos_sinq/{instrument}/guiconfig.py'
    if not path.exists(guiconfig):
        guiconfig = f'{nicosroot}/nicos_sinq/guiconfig.py'
-   sys.exit(main(['-c', guiconfig, connect]))
+   sys.argv[1:] = [connect, '-c', guiconfig]
+   sys.exit(main(sys.argv))
 else:
    print(usage)