diff --git a/controller/VisitorCtrl.php b/controller/VisitorCtrl.php
index febcfb5..13785da 100644
--- a/controller/VisitorCtrl.php
+++ b/controller/VisitorCtrl.php
@@ -174,7 +174,7 @@ class VisitorCtrl
     
     function isDone(){
         $this->taskModel->modifTask($_POST['idT'],'isDone',true);
-        if($_POST['isPriv'])
+        if(isset($_POST['isPriv']) && $_POST['isPriv'])
             header("Location:index.php?action=voirListePriv");
         else
             $this->loadHome();