diff --git a/sshagent/trezor.py b/sshagent/trezor.py
index f7e6ac5..02835cb 100644
--- a/sshagent/trezor.py
+++ b/sshagent/trezor.py
@@ -36,8 +36,7 @@ class Client(object):
         self.factory = factory
         self.client = self.factory.client()
         f = self.client.features
-        log.info('connected to Trezor')
-        log.debug('ID       : %s', f.device_id)
+        log.debug('connected to Trezor %s', f.device_id)
         log.debug('label    : %s', f.label)
         log.debug('vendor   : %s', f.vendor)
         version = [f.major_version, f.minor_version, f.patch_version]
diff --git a/sshagent/trezor_agent.py b/sshagent/trezor_agent.py
index 75e852e..19f2477 100644
--- a/sshagent/trezor_agent.py
+++ b/sshagent/trezor_agent.py
@@ -13,17 +13,23 @@ log = logging.getLogger(__name__)
 def main():
     fmt = '%(asctime)s %(levelname)-12s %(message)-100s [%(filename)s:%(lineno)d]'
     p = argparse.ArgumentParser()
-    p.add_argument('-v', '--verbose', action='count', default=0,
-                   help='increase the the logging verbosity')
+    g = p.add_mutually_exclusive_group()
+    g.add_argument('-v', '--verbose', default=0, action='count')
+    g.add_argument('-q', '--quiet', default=False, action='store_true')
+
     p.add_argument('-c', dest='command', type=str, default=None,
                    help='command to run under the SSH agent')
     p.add_argument('identity', type=str, nargs='*',
                    help='proto://[user@]host[:port][/path]')
     args = p.parse_args()
 
-    verbosity = [logging.WARNING, logging.INFO, logging.DEBUG]
-    level = verbosity[min(args.verbose, len(verbosity) - 1)]
-    logging.basicConfig(level=level, format=fmt)
+    loglevel = logging.INFO
+    if args.verbose:
+        loglevel = logging.DEBUG
+    if args.quiet:
+        loglevel = logging.WARNING
+
+    logging.basicConfig(level=loglevel, format=fmt)
 
     with trezor.Client(factory=trezor.TrezorLibrary) as client:
         public_keys = []