diff --git a/syncplay/ui/ConfigurationGetter.py b/syncplay/ui/ConfigurationGetter.py
index 2cbcaa6..720dfc0 100755
--- a/syncplay/ui/ConfigurationGetter.py
+++ b/syncplay/ui/ConfigurationGetter.py
@@ -490,6 +490,7 @@ class ConfigurationGetter(object):
         self._argparser.add_argument('-r', '--room', metavar='room', type=str, nargs='?', help=getMessage("room-argument"))
         self._argparser.add_argument('-p', '--password', metavar='password', type=str, nargs='?', help=getMessage("password-argument"))
         self._argparser.add_argument('--player-path', metavar='path', type=str, help=getMessage("player-path-argument"))
+        self._argparser.add_argument('-psn', metavar='blackhole', type=str, help=argparse.SUPPRESS)
         self._argparser.add_argument('--language', metavar='language', type=str, help=getMessage("language-argument"))
         self._argparser.add_argument('file', metavar='file', type=str, nargs='?', help=getMessage("file-argument"))
         self._argparser.add_argument('--clear-gui-data', action='store_true', help=getMessage("clear-gui-data-argument"))