diff --git a/seahub/help/templates/help/base.html b/seahub/help/templates/help/base.html
index acaee73893..cca738adfe 100644
--- a/seahub/help/templates/help/base.html
+++ b/seahub/help/templates/help/base.html
@@ -101,7 +101,9 @@
             </ul>
         </div>
     </div>
-    <div class="help-con article col-md-9 ov-auto flex-1" id="right-panel">{% block help_con %}{% endblock %}</div>
+    <div class="help-con article col-md-9 ov-auto flex-1 h100" id="right-panel">
+      {% block help_con %}{% endblock %}
+    </div>
 </div>
 {% endblock %}