diff --git a/web/index_dev.php b/web/index_dev.php
index cb9a3d6f0..f02a625da 100755
--- a/web/index_dev.php
+++ b/web/index_dev.php
@@ -1,4 +1,28 @@
 <?php
+/**********************************************************************************/
+/*                                                                                */
+/*      Thelia	                                                                  */
+/*                                                                                */
+/*      Copyright (c) OpenStudio                                                  */
+/*      email : info@thelia.net                                                   */
+/*      web : http://www.thelia.net                                               */
+/*                                                                                */
+/*      This program is free software; you can redistribute it and/or modify      */
+/*      it under the terms of the GNU General Public License as published by      */
+/*      the Free Software Foundation; either version 3 of the License             */
+/*                                                                                */
+/*      This program is distributed in the hope that it will be useful,           */
+/*      but WITHOUT ANY WARRANTY; without even the implied warranty of            */
+/*      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             */
+/*      GNU General Public License for more details.                              */
+/*                                                                                */
+/*      You should have received a copy of the GNU General Public License         */
+/*	    along with this program. If not, see <http://www.gnu.org/licenses/>.      */
+/*                                                                                */
+/**********************************************************************************/
+
+
+use Symfony\Component\HttpFoundation\Response;
 use Thelia\Core\Thelia;
 use Thelia\Core\HttpFoundation\Request;
 
@@ -7,20 +31,21 @@ use Thelia\Core\HttpFoundation\Request;
 $env = 'dev';
 require __DIR__ . '/../core/bootstrap.php';
 
-$trustIp = array(
+// List of allowed IP
+$trustedIp = array(
   '::1',
   '127.0.0.1'
 );
 
 $request = Request::createFromGlobals();
-
-if ( false === in_array($request->getClientIp(), $trustIp)) {
-    //change request to send to a 404 error page
-    exit;
-}
-
 $thelia = new Thelia("dev", true);
 
+if ( false === in_array($request->getClientIp(), $trustedIp)) {
+    // Redirect 403 Forbidden
+    $response = new Response('Forbidden', 404);
+    $thelia->terminate($request, $response);
+}
+
 $response = $thelia->handle($request)->prepare($request)->send();
 
 $thelia->terminate($request, $response);