diff --git a/adm/config_form.php b/adm/config_form.php
index 06b58c975..5f662fa96 100644
--- a/adm/config_form.php
+++ b/adm/config_form.php
@@ -25,6 +25,11 @@ if (!isset($config['cf_mobile_new_skin'])) {
                     ADD `cf_mobile_member_skin` VARCHAR(255) NOT NULL AFTER `cf_mobile_connect_skin` ", true);
 }
 
+if(!isset($config['cf_gcaptcha_mp3'])) {
+    sql_query(" ALTER TABLE `{$g4['config_table']}`
+                    ADD `cf_gcaptcha_mp3` VARCHAR(255) NOT NULL DEFAULT '' AFTER `cf_mobile_member_skin` ", TRUE);
+}
+
 if(!isset($config['cf_kcpcert_site_cd'])) {
     sql_query(" ALTER TABLE `{$g4['config_table']}`
                     ADD `cf_kcpcert_site_cd` VARCHAR(255) NOT NULL DEFAULT '' AFTER `cf_memo_send_point` ", TRUE);
@@ -270,6 +275,21 @@ $pg_anchor = "
             </select>
         </td>
     </tr>
+    <tr>
+        <th scope="row"><label for="cf_gcaptcha_mp3">음성캡챠 선택<strong class="sound_only">필수</strong></label></th>
+        <td colspan="3">
+            <?=help(G4_GCAPTCHA_URL.'/mp3 밑의 음성 폴더를 선택합니다.')?>
+            <select name="cf_gcaptcha_mp3" id="cf_gcaptcha_mp3" required class="required">
+            <?
+            $arr = get_skin_dir('mp3', G4_GCAPTCHA_PATH);
+            for ($i=0; $i<count($arr); $i++) {
+                if ($i == 0) echo "<option value=\"\">선택</option>";
+                echo "<option value=\"".$arr[$i]."\"".get_selected($config['cf_gcaptcha_mp3'], $arr[$i]).">".$arr[$i]."</option>\n";
+            }
+            ?>
+            </select>
+        </td>
+    </tr>
     <tr>
         <th scope="row"><label for="cf_use_copy_log">복사, 이동시 로그</label></th>
         <td colspan="3">
diff --git a/adm/config_form_update.php b/adm/config_form_update.php
index 68ffda47f..bb24813bf 100644
--- a/adm/config_form_update.php
+++ b/adm/config_form_update.php
@@ -100,12 +100,13 @@ $sql = " update {$g4['config_table']}
                  cf_privacy = '{$_POST['cf_privacy']}',
                  cf_open_modify = '{$_POST['cf_open_modify']}',
                  cf_memo_send_point = '{$_POST['cf_memo_send_point']}',
+                 cf_kcpcert_site_cd = '{$_POST['cf_kcpcert_site_cd']}',
+                 cf_adult_check = '{$_POST['cf_adult_check']}',
                  cf_mobile_new_skin = '{$_POST['cf_mobile_new_skin']}',
                  cf_mobile_search_skin = '{$_POST['cf_mobile_search_skin']}',
                  cf_mobile_connect_skin = '{$_POST['cf_mobile_connect_skin']}',
                  cf_mobile_member_skin = '{$_POST['cf_mobile_member_skin']}',
-                 cf_kcpcert_site_cd = '{$_POST['cf_kcpcert_site_cd']}',
-                 cf_adult_check = '{$_POST['cf_adult_check']}',
+                 cf_gcaptcha_mp3 = '{$_POST['cf_gcaptcha_mp3']}',
                  cf_1_subj = '{$_POST['cf_1_subj']}',
                  cf_2_subj = '{$_POST['cf_2_subj']}',
                  cf_3_subj = '{$_POST['cf_3_subj']}',
diff --git a/plugin/gcaptcha/gcaptcha.lib.php b/plugin/gcaptcha/gcaptcha.lib.php
index 4fdd5da7d..144485912 100644
--- a/plugin/gcaptcha/gcaptcha.lib.php
+++ b/plugin/gcaptcha/gcaptcha.lib.php
@@ -135,12 +135,12 @@ class gcaptcha
 
     function make_mp3($captcha_filename)
     {
-        global $g4;
+        global $g4, $config;
 
         $number = (string)$_SESSION['ss_captcha_key'];
         $mp3s = array();
         for($i=0;$i<strlen($number);$i++){
-            $file = G4_GCAPTCHA_PATH.'/mp3/'.$number[$i].'.mp3';
+            $file = G4_GCAPTCHA_PATH.'/mp3/'.$config['cf_gcaptcha_mp3'].'/'.$number[$i].'.mp3';
             $mp3s[] = $file;
         }