diff --git a/conf/conf_user_def.inc.php b/conf/conf_user_def.inc.php
index 01f9f5e..7451ce4 100644
--- a/conf/conf_user_def.inc.php
+++ b/conf/conf_user_def.inc.php
@@ -390,6 +390,9 @@ $conf_user_def['2chapi_appkey'] = ""; // ("")
 // HMKey
 $conf_user_def['2chapi_hmkey'] = ""; // ("")

+// 2chAPI User-Agent
+$conf_user_def['2chapi_user_agent'] = ""; // ("")
+
 // }}}
 // {{{ ETC

diff --git a/lib/ThreadRead.php b/lib/ThreadRead.php
index 1da0d43..89cd0d3 100644
--- a/lib/ThreadRead.php
+++ b/lib/ThreadRead.php
@@ -179,7 +179,7 @@ class ThreadRead extends Thread
         $message = '/v1/'.$serverName[0].'/'.$this->bbs.'/'.$this->key.$sid.$AppKey;
         $HB = hash_hmac("sha256", $message, $HMKey);

-        $headers = "User-Agent: Mozilla/3.0 (compatible; JaneStyle/3.80β)\r\n";
+        $headers = "User-Agent: Mozilla/3.0 (compatible; " . $_conf['2chapi_user_agent'] . ")\r\n";
         $headers .= "Connection: close\r\n";
         $headers .= "Content-Type: application/x-www-form-urlencoded\r\n";

diff --git a/lib/auth2chapi.inc.php b/lib/auth2chapi.inc.php
index dc697b8..da0d073 100644
--- a/lib/auth2chapi.inc.php
+++ b/lib/auth2chapi.inc.php
@@ -37,7 +37,7 @@
             'method' => 'POST',
             'header' => implode("\r\n", array(
                 'User-Agent: Monazilla/1.3',
-                'X-2ch-UA: JaneStyle/3.80',
+                'X-2ch-UA: ' . $_conf['2chapi_user_agent'],
                 'Content-Type: application/x-www-form-urlencoded',
             )),
             'content' => http_build_query($values),
diff --git a/rep2/edit_conf_user.php b/rep2/edit_conf_user.php
index 49586fe..8dc65a5 100644
--- a/rep2/edit_conf_user.php
+++ b/rep2/edit_conf_user.php
@@ -373,6 +373,7 @@ if ($flags & P2_EDIT_CONF_USER_SKIPPED) {
         array('2chapi_rounin','2ch API 認証時に●(浪人)IDを送信する(人柱機能)'),
         array('2chapi_appkey','AppKey'),
         array('2chapi_hmkey','HMkey'),
+        array('2chapi_user_agent','User-Agent'),
     );
     printEditConfGroupHtml($groupname, $conflist, $flags);
 }