diff --git a/web/template/account_edit_form.php b/web/template/account_edit_form.php
index 16655c0f..b25ff397 100644
--- a/web/template/account_edit_form.php
+++ b/web/template/account_edit_form.php
@@ -17,7 +17,7 @@
 	<fieldset>
 		<p>
 			<label for="id_username"><?= __("Username") ?>:</label>
-			<input type="text" size="30" maxlength="64" name="U" id="id_username" value="<?= htmlspecialchars($U,ENT_QUOTES) ?>" /> (<?= __("required") ?>)
+			<input type="text" size="30" maxlength="<?= config_get_int('options', 'username_max_len'); ?>" name="U" id="id_username" value="<?= htmlspecialchars($U,ENT_QUOTES) ?>" /> (<?= __("required") ?>)
 		</p>
 		<?php
 		# Only TUs or Devs can promote/demote/suspend a user