diff --git a/web/admin/problem_add_page.php b/web/admin/problem_add_page.php
index 5212014..a5ea1c8 100644
--- a/web/admin/problem_add_page.php
+++ b/web/admin/problem_add_page.php
@@ -46,7 +46,7 @@ if (!(isset($_SESSION[$OJ_NAME . '_' . 'administrator']) || isset($_SESSION[$OJ_
           <input class="input input-mini" type=number min="1" max="2048" step="1" name=memory_limit size=20 value=128>
           MiB<br><br>
         </p>
-        < align=left>
+        <p align=left>
           <?php echo "<h4>" . $MSG_Description . "(<64kB)</h4>" ?>
           <textarea class="kindeditor" rows=13 name=description cols=80></textarea><br>
           </p>