diff --git a/extdbms/lib/Controllers/DBMS/DefenceController.php b/extdbms/lib/Controllers/DBMS/DefenceController.php
index e0d9448..0938df7 100644
--- a/extdbms/lib/Controllers/DBMS/DefenceController.php
+++ b/extdbms/lib/Controllers/DBMS/DefenceController.php
@@ -28,7 +28,7 @@ class DefenceController extends DBMSController
         if (!array_key_exists('zone', $params)) {
             throw new \Exception("zone 값이 정의되지 않았습니다.");
         }
-        $zone = $params['szone'];
+        $zone = $params['zone'];
         $this->entities = $this->getDefenceService()->getMKList($zone);
         $this->zone = $zone;
         return $this->render(__FUNCTION__);