diff --git a/interface/web/tools/form/user_settings.tform.php b/interface/web/tools/form/user_settings.tform.php
index 56252dff92ba4b5f2eb90adbc0f4835c7e219cb1..85cdda08471d49d45f34e096cdb4119d3227f5ff 100644
--- a/interface/web/tools/form/user_settings.tform.php
+++ b/interface/web/tools/form/user_settings.tform.php
@@ -171,7 +171,7 @@ $form['tabs']['users'] = array (
 			'datatype' => 'VARCHAR',
 			'formtype' => 'SELECT',
 			'validators' => array (  0 => array (    'type' => 'NOTEMPTY',
-			'errmsg'=> 'oth_auth_empty'),
+			'errmsg'=> 'otp_auth_empty'),
 			1 => array (    'type' => 'REGEX',
 			'regex' => '/^[a-z0-9\_]{0,64}$/',
 			'errmsg'=> 'otp_auth_regex'),