diff --git a/src/etc/inc/interfaces.inc b/src/etc/inc/interfaces.inc
index 346c7d083..893f2a755 100644
--- a/src/etc/inc/interfaces.inc
+++ b/src/etc/inc/interfaces.inc
@@ -3552,11 +3552,6 @@ function get_real_interface($interface = 'wan', $family = 'all')
 
     $realif = $config['interfaces'][$interface]['if'];
 
-    /* XXX this is either impossibe to reach nowadays or requires an interface migration */
-    if (isset($config['interfaces'][$interface]['wireless']) && !strstr($realif, '_wlan')) {
-        $realif .= '_wlan0';
-    }
-
     if ($family == 'inet6') {
         switch ($config['interfaces'][$interface]['ipaddrv6'] ?? 'none') {
             case '6rd':
diff --git a/src/opnsense/mvc/app/models/OPNsense/Routing/Gateways.php b/src/opnsense/mvc/app/models/OPNsense/Routing/Gateways.php
index 13269d641..e18680c19 100644
--- a/src/opnsense/mvc/app/models/OPNsense/Routing/Gateways.php
+++ b/src/opnsense/mvc/app/models/OPNsense/Routing/Gateways.php
@@ -262,10 +262,6 @@ class Gateways extends BaseModel
         $ifcfg = $definedIntf[$ifname];
         $realif = $ifcfg['if'];
 
-        if (isset($ifcfg['wireless']) && !strstr($realif, '_wlan')) {
-            $realif .= '_wlan0';
-        }
-
         if ($ipproto == 'inet6') {
             switch ($ifcfg['ipaddrv6'] ?? 'none') {
                 case '6rd':
diff --git a/src/opnsense/scripts/health/library/OPNsense/RRD/Stats/Base.php b/src/opnsense/scripts/health/library/OPNsense/RRD/Stats/Base.php
index 5f04d3e3f..5ae4b9986 100755
--- a/src/opnsense/scripts/health/library/OPNsense/RRD/Stats/Base.php
+++ b/src/opnsense/scripts/health/library/OPNsense/RRD/Stats/Base.php
@@ -78,10 +78,6 @@ abstract class Base
                         'name' => !empty((string)$node->descr) ? (string)$node->descr : $ifname,
                         'if' => (string)$node->if
                     ];
-                    /* relevant parts from get_real_interface() using in old rrd.inc  */
-                    if (isset($node->wireless) && !strstr((string)$node->if, '_wlan')) {
-                        self::$metadata['interfaces'][$ifname]['if'] .= '_wlan0';
-                    }
                 }
             }
             foreach ((new \OPNsense\OpenVPN\OpenVPN())->serverDevices() as $ifname => $data) {