diff --git a/test/private-chat b/test/private-chat
index e7c8026e..2fe07970 100755
--- a/test/private-chat
+++ b/test/private-chat
@@ -11,10 +11,16 @@ manager = dbus.Interface(bus.get_object('org.ofono', '/'),
 modems = manager.GetModems()
 path = modems[0][0]
 
+if (len(sys.argv) == 3):
+	path = sys.argv[1]
+	callid = sys.argv[2]
+else:
+	callid = sys.argv[1]
+
 manager = dbus.Interface(bus.get_object('org.ofono', path),
 						'org.ofono.VoiceCallManager')
 
-mpty = manager.PrivateChat(sys.argv[1], timeout=100)
+mpty = manager.PrivateChat(callid, timeout=100)
 
 for path in mpty:
 	print path