diff --git a/Controller/SingleTaskController.php b/Controller/SingleTaskController.php
index a4cf1c4ef..81f7efb3c 100644
--- a/Controller/SingleTaskController.php
+++ b/Controller/SingleTaskController.php
@@ -32,6 +32,7 @@ class SingleTaskController extends Controller
      */
     public function newAction(Request $request)
     {
+
         $personId = $request->query->getInt('person_id', null);
 
         if ($personId === null) {
@@ -47,8 +48,8 @@ class SingleTaskController extends Controller
         }
 
         $task = (new SingleTask())
-            ->setPerson($person)
             ->setAssignee($this->getUser())
+            ->setPerson($person)
             ->setType('task_default')
             ;
 
@@ -69,7 +70,7 @@ class SingleTaskController extends Controller
                 $this->addFlash('success', "The task is created");
 
                 return $this->redirectToRoute('chill_task_task_list_by_person', [
-                    'personId' => $task->getPerson()->getId()
+                    'person_id' => $task->getPerson()->getId()
                 ]);
 
             } else {
@@ -173,7 +174,7 @@ class SingleTaskController extends Controller
                 $this->addFlash('success', "Success : task updated!");
 
                 return $this->redirectToRoute('chill_task_task_list_by_person', [
-                    'personId' => $task->getPerson()->getId()
+                    'person_id' => $task->getPerson()->getId()
                 ]);
 
             } else {
@@ -253,7 +254,7 @@ class SingleTaskController extends Controller
 
                 return $this->redirect($this->generateUrl(
                   'chill_task_task_list_by_person', array(
-                     'personId' => $personId
+                     'person_id' => $personId
                   )));
             }
         }
@@ -308,7 +309,7 @@ class SingleTaskController extends Controller
 
         // Get parameters from url
         if ($request->query->has('person_id')) {
-            $personId = $request->query->get('person_id');
+            $personId = $request->query->getInt('person_id', null);
             $person = $personRepository->find($personId);
 
             if ($person === null) {
@@ -323,7 +324,7 @@ class SingleTaskController extends Controller
 
         if ($request->query->has('user_id')) {
 
-            $userId = $request->query->get('user_id');
+            $userId = $request->query->getInt('user_id', null);
             $user = $this->getDoctrine()->getManager()
                 ->getRepository('ChillMainBundle:User')
                 ->find($userId);
@@ -338,7 +339,7 @@ class SingleTaskController extends Controller
 
         if ($request->query->has('scope_id')) {
 
-            $scopeId = $request->query->get('scope_id');
+            $scopeId = $request->query->getInt('scope_id', null);
             $scope = $this->getDoctrine()->getManager()
                 ->getRepository('ChillMainBundle:Scope')
                 ->find($scopeId);
@@ -366,6 +367,8 @@ class SingleTaskController extends Controller
 
         $viewParams['isSingleStatus'] = $singleStatus = count($statuses) === 1;
 
+        $tasks_count = 0;
+
         foreach($statuses as $status) {
             if($request->query->has('status')
                 && FALSE === \in_array($status, $statuses)) {
@@ -393,8 +396,13 @@ class SingleTaskController extends Controller
                     $singleStatus ? $paginator->getCurrentPage()->getFirstItemNumber() : 0,
                     $singleStatus ? $paginator->getItemsPerPage() : 10)
                 ;
+
+            $tasks_count = $tasks_count + $count;
         }
 
+        // total number of tasks
+        $viewParams['tasks_count'] = $tasks_count;
+
         if ($request->query->has('person_id')){
             $viewParams['layout'] = 'ChillPersonBundle::layout.html.twig';
         } else {
@@ -404,6 +412,7 @@ class SingleTaskController extends Controller
         return $this->render('ChillTaskBundle:SingleTask:index.html.twig', $viewParams);
     }
 
+
     protected function getPersonParam(Request $request, EntityManagerInterface $em)
     {
         $person = $em->getRepository(Person::class)
diff --git a/Resources/views/SingleTask/_list.html.twig b/Resources/views/SingleTask/_list.html.twig
index 1fdb7efc6..6998ab331 100644
--- a/Resources/views/SingleTask/_list.html.twig
+++ b/Resources/views/SingleTask/_list.html.twig
@@ -62,7 +62,7 @@
                 <ul class="record_actions">
                     <li>
                         {% if person is not null %}
-                        <a href="{{ path('chill_task_singletask_list', {'personId': person.id}) }}" class="sc-button bt-cancel">
+                        <a href="{{ path('chill_task_singletask_list', {'person_id': person.id}) }}" class="sc-button bt-cancel">
                             {{ 'Back to the list' | trans }}
                         </a>
                         {% endif %}
@@ -89,7 +89,7 @@
                 <ul class="record_actions">
                     <li>
                         {% if person is not null %}
-                        <a href="{{ path('chill_task_singletask_list', {'personId': person.id, 'status' : [ status ] }) }}" class="sc-button bt-cancel">
+                        <a href="{{ path('chill_task_singletask_list', {'person_id': person.id, 'status' : [ status ] }) }}" class="sc-button bt-cancel">
                             {{ 'See more' | trans }}
                         </a>
                         {% endif %}
@@ -110,40 +110,57 @@
 
 
     <h1>{{ 'Task list'|trans }}</h1>
+    {% if tasks_count == 0 %}
+        <p class="chill-no-data-statement">{{ "There is no tasks."|trans }}</p>
+        {% if person is not null %}
+        <a href="{{ path('chill_task_single_task_new', {'person_id': person.id}) }}" class="sc-button bt-create">
+            {{ 'Add a new task' | trans }}
+        </a>
+        {% endif %}
+        <!-- Pour l'instant, il n'est pas encore possible d'ajouter une tache sans personne liée -->
+        <!-- {% if person is null %}
+        <a href="{{ path('chill_task_single_task_new') }}" class="sc-button bt-create">
+            {{ 'Add a new task' | trans }}
+        </a>
+        {% endif %} -->
+    {% else %}
 
-    {% if single_task_ended_tasks is defined %}
-        {{ helper.date_status('Tasks with expired deadline', single_task_ended_tasks, single_task_ended_count, single_task_ended_paginator, 'ended', isSingleStatus, person) }}
-    {% endif %}
+        {% if single_task_ended_tasks is defined %}
+            {{ helper.date_status('Tasks with expired deadline', single_task_ended_tasks, single_task_ended_count, single_task_ended_paginator, 'ended', isSingleStatus, person) }}
+        {% endif %}
 
-    {% if single_task_warning_tasks is defined %}
-        {{ helper.date_status('Tasks with warning deadline reached', single_task_warning_tasks, single_task_warning_count, single_task_warning_paginator, 'warning',  isSingleStatus, person) }}
-    {% endif %}
+        {% if single_task_warning_tasks is defined %}
+            {{ helper.date_status('Tasks with warning deadline reached', single_task_warning_tasks, single_task_warning_count, single_task_warning_paginator, 'warning',  isSingleStatus, person) }}
+        {% endif %}
 
-    {% if single_task_current_tasks is defined %}
-        {{ helper.date_status('Current tasks', single_task_current_tasks, single_task_current_count, single_task_current_paginator, 'current',  isSingleStatus, person) }}
-    {% endif %}
+        {% if single_task_current_tasks is defined %}
+            {{ helper.date_status('Current tasks', single_task_current_tasks, single_task_current_count, single_task_current_paginator, 'current',  isSingleStatus, person) }}
+        {% endif %}
 
-    {% if single_task_not_started_tasks is defined %}
-        {{ helper.date_status('Tasks not started', single_task_not_started_tasks, single_task_not_started_count, single_task_not_started_paginator, 'not_started',  isSingleStatus, person) }}
-    {% endif %}
+        {% if single_task_not_started_tasks is defined %}
+            {{ helper.date_status('Tasks not started', single_task_not_started_tasks, single_task_not_started_count, single_task_not_started_paginator, 'not_started',  isSingleStatus, person) }}
+        {% endif %}
 
-    {% if single_task_closed_tasks is defined %}
-        {{ helper.date_status('Closed', single_task_closed_tasks, single_task_closed_count, single_task_closed_paginator, 'closed',  isSingleStatus, person) }}
-    {% endif %}
+        {% if single_task_closed_tasks is defined %}
+            {{ helper.date_status('Closed', single_task_closed_tasks, single_task_closed_count, single_task_closed_paginator, 'closed',  isSingleStatus, person) }}
+        {% endif %}
+
+        {% if isSingleStatus == false %}
+            <ul class="record_actions">
+                <li>
+                    {% if person is not null %}
+                    <a href="{{ path('chill_task_single_task_new', {'person_id': person.id}) }}" class="sc-button bt-create">
+                        {{ 'Add a new task' | trans }}
+                    </a>
+                    {% endif %}
+                    <!-- Pour l'instant, il n'est pas encore possible d'ajouter une tache sans personne liée -->
+                    <!-- {% if person is null %}
+                    <a href="{{ path('chill_task_single_task_new') }}" class="sc-button bt-create">
+                        {{ 'Add a new task' | trans }}
+                    </a>
+                    {% endif %} -->
+                </li>
+            </ul>
+        {% endif %}
 
-    {% if isSingleStatus == false %}
-        <ul class="record_actions">
-            <li>
-                {% if person is not null %}
-                <a href="{{ path('chill_task_single_task_new', {'person_id': person.id}) }}" class="sc-button bt-create">
-                    {{ 'Add a new task' | trans }}
-                </a>
-                {% endif %}
-                {% if user is not null %}
-                <a href="{{ path('chill_task_single_task_new') }}" class="sc-button bt-create">
-                    {{ 'Add a new task' | trans }}
-                </a>
-                {% endif %}
-            </li>
-        </ul>
     {% endif %}
diff --git a/Resources/views/SingleTask/index.html.twig b/Resources/views/SingleTask/index.html.twig
index 94759c632..7ba662f13 100644
--- a/Resources/views/SingleTask/index.html.twig
+++ b/Resources/views/SingleTask/index.html.twig
@@ -32,11 +32,11 @@
 
 {# filter tasks #}
 
-{% if person is not null and user is null %}
+{% if person is not null %}
     {% block personcontent %}
         {% include 'ChillTaskBundle:SingleTask:_list.html.twig' %}
     {% endblock %}
-{% elseif user is not null and person is null %}
+{% else %}
     {% block content %}
         {% include 'ChillTaskBundle:SingleTask:_list.html.twig' %}
     {% endblock %}