diff --git a/extdbms/lib/Services/AddDbService.php b/extdbms/lib/Services/AddDbService.php
index 7edf5ae..dc92b0b 100644
--- a/extdbms/lib/Services/AddDbService.php
+++ b/extdbms/lib/Services/AddDbService.php
@@ -36,7 +36,7 @@ class AddDbService extends CommonService
     $this->getModel()->where('AddDB_code', $adddb_code);
     $service_codes = [];
     foreach ($this->getModel()->getEntitys() as $entity) {
-      $service_codes = $entity->getServiceCode();
+      $service_codes[] = $entity->getServiceCode();
     }
     return $service_codes;
   }