diff --git a/src/www/services_dhcp.php b/src/www/services_dhcp.php
index 94b76a99c..b081e34ac 100644
--- a/src/www/services_dhcp.php
+++ b/src/www/services_dhcp.php
@@ -789,7 +789,8 @@ include("head.inc");
                       <td>
                         <input name="gateway" type="text" class="form-control host" value="<?=$pconfig['gateway'];?>" />
                         <div class="hidden" data-for="help_for_gateway">
-                          <?=gettext('The default is to use the IP on this interface of the firewall as the gateway. Specify an alternate gateway here if this is not the correct gateway for your network. Type "none" for no gateway assignment.');?>
+                          <?=gettext('The default is to use the IP on this interface of the firewall as the gateway, if a valid (online) gateway has been configured under System->Gateways. '.
+                                     'Specify an alternate gateway here if this is not the correct gateway for your network. Type "none" for no gateway assignment.');?>
                         </div>
                       </td>
                     </tr>