diff --git a/modules/spamfilter/lang/en.php b/modules/spamfilter/lang/en.php
index 4d501c375..d48382a60 100644
--- a/modules/spamfilter/lang/en.php
+++ b/modules/spamfilter/lang/en.php
@@ -44,6 +44,7 @@ $lang->msg_invalid_ip = 'Invalid IP address format.';
 $lang->msg_invalid_word = 'Spam keywords must be between 2 and 180 characters.';
 $lang->msg_faillist = '<br />Error (already blocked)<br /> %s ';
 $lang->use_captcha = 'Use CAPTCHA';
+$lang->about_captcha_position = 'The skin file for your login form, write form, etc. should indicate the CAPTCHA position with the following code: <code>{$captcha}</code><br />The CAPTCHA may be inserted in an unexpected position if the form does not contain the code.';
 $lang->recaptcha_theme = 'Color Theme';
 $lang->recaptcha_theme_light = 'Light';
 $lang->recaptcha_theme_dark = 'Dark';
diff --git a/modules/spamfilter/lang/ko.php b/modules/spamfilter/lang/ko.php
index ea2e93f3b..efe809645 100644
--- a/modules/spamfilter/lang/ko.php
+++ b/modules/spamfilter/lang/ko.php
@@ -44,6 +44,7 @@ $lang->msg_invalid_ip = 'IP 주소 형식이 올바르지 않습니다.';
 $lang->msg_invalid_word = '스팸 키워드는 2~180자 사이여야 합니다.';
 $lang->msg_faillist = '<br />실패 (이미 차단되어 있습니다)<br /> %s ';
 $lang->use_captcha = '캡챠 사용';
+$lang->about_captcha_position = '로그인 폼, 글쓰기 폼 등의 스킨에서 캡챠를 표시할 위치에 <code>{$captcha}</code> 코드가 들어 있어야 합니다.<br />코드가 없는 경우 임의의 위치에 캡챠가 삽입되므로 디자인이 틀어질 수 있습니다.';
 $lang->recaptcha_theme = '색상 테마';
 $lang->recaptcha_theme_light = '밝은 색상';
 $lang->recaptcha_theme_dark = '어두운 색상';
diff --git a/modules/spamfilter/tpl/config_captcha.html b/modules/spamfilter/tpl/config_captcha.html
index d6214b540..2b7ffe751 100644
--- a/modules/spamfilter/tpl/config_captcha.html
+++ b/modules/spamfilter/tpl/config_captcha.html
@@ -12,6 +12,7 @@
 					<option value="none" selected="selected"|cond="$config->captcha->type === 'none'">{$lang->notuse}</option>
 					<option value="recaptcha" selected="selected"|cond="$config->captcha->type === 'recaptcha'">reCAPTCHA</option>
 				</select>
+				<p class="x_help-block">{$lang->about_captcha_position}</p>
 			</div>
 		</div>
 		<div class="x_control-group">