diff --git a/src/op_mode/connect_disconnect.py b/src/op_mode/connect_disconnect.py
index 379890c54..8903f916a 100755
--- a/src/op_mode/connect_disconnect.py
+++ b/src/op_mode/connect_disconnect.py
@@ -1,119 +1,119 @@
 #!/usr/bin/env python3
 #
 # Copyright (C) 2020-2024 VyOS maintainers and contributors
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 or later as
 # published by the Free Software Foundation.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import os
 import argparse
 
 from psutil import process_iter
 
 from vyos.configquery import ConfigTreeQuery
 from vyos.utils.process import call
 from vyos.utils.commit import commit_in_progress
 from vyos.utils.network import is_wwan_connected
 from vyos.utils.process import DEVNULL
 
 def check_ppp_interface(interface):
     if not os.path.isfile(f'/etc/ppp/peers/{interface}'):
         print(f'Interface {interface} does not exist!')
         exit(1)
 
 def check_ppp_running(interface):
     """ Check if PPP process is running in the interface in question """
     for p in process_iter():
         if "pppd" in p.name():
             if interface in p.cmdline():
                 return True
 
     return False
 
 def connect(interface):
     """ Connect dialer interface """
 
     if interface.startswith('pppoe') or interface.startswith('sstpc'):
         check_ppp_interface(interface)
         # Check if interface is already dialed
         if os.path.isdir(f'/sys/class/net/{interface}'):
             print(f'Interface {interface}: already connected!')
         elif check_ppp_running(interface):
             print(f'Interface {interface}: connection is being established!')
         else:
             print(f'Interface {interface}: connecting...')
             call(f'systemctl restart ppp@{interface}.service')
     elif interface.startswith('wwan'):
         if is_wwan_connected(interface):
             print(f'Interface {interface}: already connected!')
         else:
             call(f'VYOS_TAGNODE_VALUE={interface} /usr/libexec/vyos/conf_mode/interfaces_wwan.py')
     else:
         print(f'Unknown interface {interface}, cannot connect. Aborting!')
 
     # Reaply QoS configuration
     config = ConfigTreeQuery()
     if config.exists(f'qos interface {interface}'):
         count = 1
         while commit_in_progress():
             if ( count % 60 == 0 ):
                 print(f'Commit still in progress after {count}s - waiting')
             count += 1
             time.sleep(1)
         call('/usr/libexec/vyos/conf_mode/qos.py')
 
 def disconnect(interface):
     """ Disconnect dialer interface """
 
     if interface.startswith('pppoe') or interface.startswith('sstpc'):
         check_ppp_interface(interface)
 
         # Check if interface is already down
         if not check_ppp_running(interface):
             print(f'Interface {interface}: connection is already down')
         else:
             print(f'Interface {interface}: disconnecting...')
             call(f'systemctl stop ppp@{interface}.service')
     elif interface.startswith('wwan'):
         if not is_wwan_connected(interface):
             print(f'Interface {interface}: connection is already down')
         else:
             modem = interface.lstrip('wwan')
             call(f'mmcli --modem {modem} --simple-disconnect', stdout=DEVNULL)
     else:
         print(f'Unknown interface {interface}, cannot disconnect. Aborting!')
 
 def main():
     parser = argparse.ArgumentParser()
     group = parser.add_mutually_exclusive_group()
     group.add_argument("--connect", help="Bring up a connection-oriented network interface", action="store_true")
     group.add_argument("--disconnect", help="Take down connection-oriented network interface", action="store_true")
-    group.add_argument("--interface", help="Interface name", action="store", required=True)
+    parser.add_argument("--interface", help="Interface name", action="store", required=True)
     args = parser.parse_args()
 
     if args.connect or args.disconnect:
         if args.disconnect:
             disconnect(args.interface)
 
         if args.connect:
             if commit_in_progress():
                 print('Cannot connect while a commit is in progress')
                 exit(1)
             connect(args.interface)
 
     else:
         parser.print_help()
 
     exit(0)
 
 if __name__ == '__main__':
      main()