diff --git a/controllers/ControllerAdmin.php b/controllers/ControllerAdmin.php
index 9b88657..06c6509 100644
--- a/controllers/ControllerAdmin.php
+++ b/controllers/ControllerAdmin.php
@@ -7,8 +7,13 @@ class controllerAdmin {
         session_start();
         try
         {
+            if (in_array("action",$_REQUEST)) {
+                $action = $_REQUEST['action'];
+            }
+            else {
+                $action = "";
+            }
 
-            $action=$_REQUEST['action'];
             switch($action) {
                 case "ajoutSource":
                     $this->ajoutSource($_REQUEST["linkSource"]);