diff --git a/src/Bundle/ChillAsideActivityBundle/src/Form/AsideActivityFormType.php b/src/Bundle/ChillAsideActivityBundle/src/Form/AsideActivityFormType.php
index d6fcb821c..e0447effc 100644
--- a/src/Bundle/ChillAsideActivityBundle/src/Form/AsideActivityFormType.php
+++ b/src/Bundle/ChillAsideActivityBundle/src/Form/AsideActivityFormType.php
@@ -21,6 +21,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToTimestampTransformer;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
+use Symfony\Component\Form\Extension\Core\Type\IntegerType;
 use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\Form\FormEvent;
 use Symfony\Component\Form\FormEvents;
@@ -29,11 +30,13 @@ use Symfony\Component\OptionsResolver\OptionsResolver;
 final class AsideActivityFormType extends AbstractType
 {
     private readonly array $timeChoices;
+    private readonly bool $showConcernedUsersCount;
 
     public function __construct(
         ParameterBagInterface $parameterBag,
     ) {
         $this->timeChoices = $parameterBag->get('chill_aside_activity.form.time_duration');
+        $this->showConcernedUsersCount = $parameterBag->get('chill_aside_activity.show_concerned_users_count');
     }
 
     public function buildForm(FormBuilderInterface $builder, array $options)
@@ -76,6 +79,17 @@ final class AsideActivityFormType extends AbstractType
             ->add('location', PickUserLocationType::class)
         ;
 
+        if ($this->showConcernedUsersCount) {
+            $builder->add('concernedUsersCount', IntegerType::class, [
+                'label' => 'Concerned users count',
+                'required' => false,
+                'attr' => [
+                    'min' => 0,
+                    'placeholder' => 'Number of concerned users',
+                ],
+            ]);
+        }
+
         foreach (['duration'] as $fieldName) {
             $builder->get($fieldName)
                 ->addModelTransformer($durationTimeTransformer);