diff --git a/mobile/skin/member/basic/register_form.skin.php b/mobile/skin/member/basic/register_form.skin.php
index 23032f0c6..9885b76de 100644
--- a/mobile/skin/member/basic/register_form.skin.php
+++ b/mobile/skin/member/basic/register_form.skin.php
@@ -240,7 +240,7 @@ if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가
 
     <tr>
         <th scope="row">자동등록방지</th>
-        <td><?php echo $captcha_html ?></td>
+        <td><?php echo captcha_html(); ?></td>
     </tr>
     </table>