diff --git a/phpBB/adm/style/acp_captcha.html b/phpBB/adm/style/acp_captcha.html
index e8e5bd2265..83d47c193a 100644
--- a/phpBB/adm/style/acp_captcha.html
+++ b/phpBB/adm/style/acp_captcha.html
@@ -48,7 +48,7 @@
 </dd>
 </dl>
 <dl>
-	<dt><label for="captcha_gd_3d_noise">{L_CAPTCHA_GD_3D_NOISE}:</label><br /><span>{L_CAPTCHA_GD_3D_NOIS_EXPLAIN}</span></dt>
+	<dt><label for="captcha_gd_3d_noise">{L_CAPTCHA_GD_3D_NOISE}:</label><br /><span>{L_CAPTCHA_GD_3D_NOISE_EXPLAIN}</span></dt>
 	<dd><label><input id="captcha_gd_3d_noise" name="captcha_gd_3d_noise" value="1" class="radio" type="radio"<!-- IF CAPTCHA_GD_3D_NOISE --> checked="checked"<!-- ENDIF --> /> {L_YES}</label>
 		<label><input name="captcha_gd_3d_noise" value="0" class="radio" type="radio"<!-- IF not CAPTCHA_GD_3D_NOISE --> checked="checked"<!-- ENDIF --> /> {L_NO}</label>
 </dd>