diff --git a/integrations/nagios/nagios-notify-zulip b/integrations/nagios/nagios-notify-zulip
index 0e92e40..2f4e48a 100755
--- a/integrations/nagios/nagios-notify-zulip
+++ b/integrations/nagios/nagios-notify-zulip
@@ -2,6 +2,7 @@
 import optparse
 import zulip
 
+VERSION = "0.9"
 # Nagios passes the notification details as command line options.
 # In Nagios, "output" means "first line of output", and "long
 # output" means "other lines of output".
@@ -14,7 +15,7 @@ for opt in ('type', 'host', 'service', 'state'):
     parser.add_option('--' + opt)
 (opts, args) = parser.parse_args()
 
-client = zulip.Client(config_file=opts.config)
+client = zulip.Client(config_file=opts.config, client="nagios " + VERSION)
 
 msg = dict(type='stream', to=opts.stream)