diff --git a/.gitignore b/.gitignore
index 3e26fb122..4ae7fdff4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,6 @@ nemoluv*
 cheditor*
 *.key
 *.sh
+kcho07_rss/
+mobile/skin/board/bach72_mobile/
+skin/board
diff --git a/adm/boardgroup_form.php b/adm/boardgroup_form.php
index ce9f57c15..6b03a9467 100644
--- a/adm/boardgroup_form.php
+++ b/adm/boardgroup_form.php
@@ -53,7 +53,7 @@ include_once('./admin.head.php');
     <tbody>
     <tr>
         <th scope="row"><label for="gr_id">그룹 ID<?php echo $sound_only ?></label></th>
-        <td><input type="text" name="gr_id" value="<?php echo $group['gr_id'] ?>" id="gr_id" class="<?php echo $gr_id_attr ?> alnum_ frm_input" maxlength="10"> 
+        <td><input type="text" name="gr_id" value="<?php echo $group['gr_id'] ?>" id="gr_id" required class="<?php echo $gr_id_attr ?> alnum_ frm_input" maxlength="10"> 
             <?php 
             if ($w=='')
                 echo '영문자, 숫자, _ 만 가능 (공백없이)';
diff --git a/plugin/gcaptcha/gcaptcha.lib.php b/plugin/gcaptcha/gcaptcha.lib.php
index f25c26025..2bb2e0390 100644
--- a/plugin/gcaptcha/gcaptcha.lib.php
+++ b/plugin/gcaptcha/gcaptcha.lib.php
@@ -186,7 +186,7 @@ function captcha_html($class='captcha')
     if (G5_IS_MOBILE) $html .= '<audio src="'.$mp3_file_url.'?_='.$rand.'" controls></audio>';
     $html .= '<img src="'.$jpg_file_url.'?_='.$rand.'" alt="자동등록방지 숫자">';
     if (!G5_IS_MOBILE) $html .= '<a href="'.$mp3_file_url.'?_='.$rand.'" id="captcha_mp3" target="_blank"><img src="'.G5_GCAPTCHA_URL.'/img/sound.gif" alt="숫자를 음성으로 듣기"></a>';
-    $html .= '<input type="text" id="captcha_key" name="captcha_key" class="captcha_box frm_input" size="6" maxlength="6" required title="자동등록방지 숫자 입력">';
+    $html .= '<input type="text" id="captcha_key" name="captcha_key" class="captcha_box frm_input required" size="6" maxlength="6" required title="자동등록방지 숫자 입력">';
     $html .= '<p class="sound_only">자동등록방지 숫자를 순서대로 입력하세요.</p>';
     $html .= '</fieldset>';
     return $html;