diff --git a/src/opnsense/scripts/OPNsense/CaptivePortal/disconnect.py b/src/opnsense/scripts/OPNsense/CaptivePortal/disconnect.py
index 6bc167e83..d103a402a 100755
--- a/src/opnsense/scripts/OPNsense/CaptivePortal/disconnect.py
+++ b/src/opnsense/scripts/OPNsense/CaptivePortal/disconnect.py
@@ -49,7 +49,8 @@ if parameters['sessionid'] is not None and parameters['zoneid'] is not None:
     # remove client
     client_session_info = DB().del_client(parameters['zoneid'], parameters['sessionid'])
     if client_session_info is not None:
-        IPFW().delete(parameters['zoneid'], client_session_info['ip_address'])
+        if client_session_info['ip_address']:
+            IPFW().delete(parameters['zoneid'], client_session_info['ip_address'])
         client_session_info['terminateCause'] = 'User-Request'
         response = client_session_info