diff --git a/changelog.md b/changelog.md
index d030d63..665305c 100644
--- a/changelog.md
+++ b/changelog.md
@@ -48,6 +48,9 @@
 #### Feature
 - Add licencing
 
+#### Improve
+- Add unassigned filter to activities
+
 #### Fix
 - Doctrine deprecation
 - Activity filter does not shows unassigned activities
\ No newline at end of file
diff --git a/src/Form/Activity/ActivityFilterForm.php b/src/Form/Activity/ActivityFilterForm.php
index d3e3acc..ebf6f46 100644
--- a/src/Form/Activity/ActivityFilterForm.php
+++ b/src/Form/Activity/ActivityFilterForm.php
@@ -31,6 +31,7 @@
         $this->actors = $data['actors'];
         $formBuilder->setData([
             'actor' => null,
+            'unassigned' => false,
             'followed' => false,
 
             'status' => null,
@@ -52,24 +53,26 @@
     public function getActivities(ActivityRepository $activityRepository): array
     {
         $data = $this->getData();
-        
+
         // Create query
         $query = $activityRepository->createQueryBuilder('activity');
-        
+
         // Create filter
         $criteria = new Criteria();
 
         // Filter actors
-        if (!is_null($data['actor']) || $data['followed']) {
+        if ($data['followed']) {
             $query->join(ActorEntity::class, 'actor', Join::WITH, 'activity.actor = actor');
-            if (!is_null($data['actor'])) {
-                $criteria->andWhere($criteria->expr()
-                    ->eq('activity.actor', $data['actor']));
-            }
-            if ($data['followed']) {
-                $criteria->andWhere($criteria->expr()
-                    ->eq('actor.followed', true));
-            }
+            $criteria->andWhere($criteria->expr()
+                ->eq('actor.followed', true));
+        }
+        if (!is_null($data['actor'])) {
+            $criteria->andWhere($criteria->expr()
+                ->eq('activity.actor', $data['actor']));
+        }
+        if ($data['unassigned']) {
+            $criteria->andWhere($criteria->expr()
+                ->isNull('activity.actor'));
         }
 
         // Filter status
@@ -135,6 +138,9 @@
             'choice_label' => 'displayName',
             'required' => false,
         ])
+            ->add('unassigned', CheckboxType::class, [
+            'required' => false,
+        ])
             ->add('followed', CheckboxType::class, [
             'required' => false,
         ]);
diff --git a/templates/_includes/html/form/activity/filter.html.twig b/templates/_includes/html/form/activity/filter.html.twig
index 37e9dc9..f3d3e1f 100644
--- a/templates/_includes/html/form/activity/filter.html.twig
+++ b/templates/_includes/html/form/activity/filter.html.twig
@@ -6,8 +6,12 @@
 			{{ form_widget(form.actor, {attr: {class: 'w-100'}}) }}
 		</div>
 		<div>
+			{{ form_widget(form.unassigned) }}
+			{{ form_label(form.unassigned, 'Non assigné') }}
+		</div>
+		<div>
 			{{ form_widget(form.followed) }}
-			{{ form_label(form.followed, 'Acteurs suivis') }}
+			{{ form_label(form.followed, 'Acteur suivi') }}
 		</div>
 	</div>
 	<div class="col-3">
@@ -17,7 +21,7 @@
 		</div>
 		<div>
 			{{ form_widget(form.active) }}
-			{{ form_label(form.active, 'Actifs') }}
+			{{ form_label(form.active, 'Actif') }}
 		</div>
 		<div>
 			{{ form_widget(form.notClosed) }}