diff --git a/src/opnsense/mvc/app/models/OPNsense/Unbound/Migrations/M1_0_5.php b/src/opnsense/mvc/app/models/OPNsense/Unbound/Migrations/M1_0_5.php
index 835e7fc5f..793b19863 100644
--- a/src/opnsense/mvc/app/models/OPNsense/Unbound/Migrations/M1_0_5.php
+++ b/src/opnsense/mvc/app/models/OPNsense/Unbound/Migrations/M1_0_5.php
@@ -46,7 +46,7 @@ class M1_0_5 extends BaseModelMigration
                     $new[$key] = empty($config->unbound->$key) ? 0 : 1;
                     continue;
                 }
-                $new[$key] = $config->unbound->$key;
+                $new[$key] = (string)$config->unbound->$key;
             }
         }