diff --git a/lib/zin/wg/thinkcheckbox/v1.php b/lib/zin/wg/thinkcheckbox/v1.php
index 712aca372b..33eddb2ff9 100644
--- a/lib/zin/wg/thinkcheckbox/v1.php
+++ b/lib/zin/wg/thinkcheckbox/v1.php
@@ -18,6 +18,11 @@ class thinkCheckbox extends thinkRadio
         'maxCount?: string',
     );
 
+    protected static array $defaultProps = array
+    (
+        'type' => 'checkbox'
+    );
+
     protected function buildBody(): array
     {
         $items = parent::buildBody();