diff --git a/pam_usb/tools/pamusb-conf b/pam_usb/tools/pamusb-conf
index f3499c4..60422d1 100755
--- a/pam_usb/tools/pamusb-conf
+++ b/pam_usb/tools/pamusb-conf
@@ -161,6 +161,8 @@ def addDevice(options):
 		try:
 			devices.append(Device(udi))
 		except Exception, ex:
+			if options['verbose']:
+				print ex
 			pass
 
 	if len(devices) == 0:
@@ -219,14 +221,14 @@ def addDevice(options):
 	writeConf(options, doc)
 
 def usage():
-	print 'Usage: %s [--help] [--config=path] [--add-user=name | --add-device=name]' % os.path.basename(__file__)
+	print 'Usage: %s [--help] [--verbose] [--config=path] [--add-user=name | --add-device=name]' % os.path.basename(__file__)
 	sys.exit(1)
 
 import getopt
 
 try:
-	opts, args = getopt.getopt(sys.argv[1:], "hd:nu:c:",
-			["help", "add-device=", "add-user=", "config="])
+	opts, args = getopt.getopt(sys.argv[1:], "hvd:nu:c:",
+			["help", "verbose", "add-device=", "add-user=", "config="])
 except getopt.GetoptError:
 	usage()
 
@@ -234,11 +236,13 @@ if len(args) != 0:
 	usage()
 
 options = { 'deviceName' : None, 'userName' : None,
-		'configFile' : '/etc/pamusb.conf' }
+		'configFile' : '/etc/pamusb.conf', 'verbose' : False }
 
 for o, a in opts:
 	if o in ("-h", "--help"):
 		usage()
+	if o in ("-v", "--verbose"):
+		options['verbose'] = True
 	if o in ("-d", "--add-device"):
 		options['deviceName'] = a
 	if o in ("-u", "--add-user"):