diff --git a/src/opnsense/mvc/app/library/OPNsense/Firewall/Plugin.php b/src/opnsense/mvc/app/library/OPNsense/Firewall/Plugin.php
index 68db16bc5..01633478c 100644
--- a/src/opnsense/mvc/app/library/OPNsense/Firewall/Plugin.php
+++ b/src/opnsense/mvc/app/library/OPNsense/Firewall/Plugin.php
@@ -187,7 +187,6 @@ class Plugin
                 yield $intfkey => $intf;
             }
         }
-        return $this->interfaceMapping;
     }
 
     /**