diff --git a/src/opnsense/mvc/app/models/OPNsense/Base/BaseModel.php b/src/opnsense/mvc/app/models/OPNsense/Base/BaseModel.php
index 72966178b..a7fe59a85 100644
--- a/src/opnsense/mvc/app/models/OPNsense/Base/BaseModel.php
+++ b/src/opnsense/mvc/app/models/OPNsense/Base/BaseModel.php
@@ -461,7 +461,7 @@ abstract class BaseModel
      */
     public function isLegacyMapper()
     {
-        return str_ends_with($this->internal_mountpoint, '+') && strpos($model_xml->mount, "//") !== 0;
+        return str_ends_with($this->internal_mountpoint, '+') && strpos($this->internal_mountpoint, "//") !== 0;
     }