diff --git a/config/packages/chill.yaml b/config/packages/chill.yaml
index 290737566..6ed6b6984 100644
--- a/config/packages/chill.yaml
+++ b/config/packages/chill.yaml
@@ -120,6 +120,3 @@ chill_activity:
             -
                 label: '5 hours'
                 seconds: 18000
-
-chill_aside_activity:
-    show_concerned_persons_count: true
diff --git a/src/Bundle/ChillAsideActivityBundle/src/DependencyInjection/ChillAsideActivityExtension.php b/src/Bundle/ChillAsideActivityBundle/src/DependencyInjection/ChillAsideActivityExtension.php
index b864a4c5c..f29e0ed86 100644
--- a/src/Bundle/ChillAsideActivityBundle/src/DependencyInjection/ChillAsideActivityExtension.php
+++ b/src/Bundle/ChillAsideActivityBundle/src/DependencyInjection/ChillAsideActivityExtension.php
@@ -25,7 +25,7 @@ final class ChillAsideActivityExtension extends Extension implements PrependExte
         $config = $this->processConfiguration($configuration, $configs);
 
         $container->setParameter('chill_aside_activity.form.time_duration', $config['form']['time_duration']);
-        $container->setParameter('chill_aside_activity.show_concerned_persons_count', $config['show_concerned_persons_count']);
+        $container->setParameter('chill_aside_activity.show_concerned_persons_count', $config['show_concerned_persons_count'] === 'visible');
 
         $loader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__.'/../config'));
         $loader->load('services.yaml');
@@ -39,6 +39,24 @@ final class ChillAsideActivityExtension extends Extension implements PrependExte
     {
         $this->prependRoute($container);
         $this->prependCruds($container);
+        $this->prependTwigConfig($container);
+    }
+
+    protected function prependTwigConfig(ContainerBuilder $container)
+    {
+        // Get the configuration for this bundle
+        $chillAsideActivityConfig = $container->getExtensionConfig($this->getAlias());
+        $config = $this->processConfiguration($this->getConfiguration($chillAsideActivityConfig, $container), $chillAsideActivityConfig);
+
+        // Add configuration to twig globals
+        $twigConfig = [
+            'globals' => [
+                'chill_aside_activity_config' => [
+                    'show_concerned_persons_count' => $config['show_concerned_persons_count'] === 'visible',
+                ],
+            ],
+        ];
+        $container->prependExtensionConfig('twig', $twigConfig);
     }
 
     protected function prependCruds(ContainerBuilder $container)
diff --git a/src/Bundle/ChillAsideActivityBundle/src/DependencyInjection/Configuration.php b/src/Bundle/ChillAsideActivityBundle/src/DependencyInjection/Configuration.php
index fd5838e3d..66f3d3c86 100644
--- a/src/Bundle/ChillAsideActivityBundle/src/DependencyInjection/Configuration.php
+++ b/src/Bundle/ChillAsideActivityBundle/src/DependencyInjection/Configuration.php
@@ -142,8 +142,9 @@ class Configuration implements ConfigurationInterface
             ->end()
             ->end()
             ->end()
-            ->booleanNode('show_concerned_persons_count')
-            ->defaultTrue()
+            ->enumNode('show_concerned_persons_count')
+            ->values(['hidden', 'visible'])
+            ->defaultValue('hidden')
             ->info('Show the concerned persons count field in aside activity forms and views')
             ->end()
             ->end();
diff --git a/src/Bundle/ChillAsideActivityBundle/src/Resources/views/asideActivity/view.html.twig b/src/Bundle/ChillAsideActivityBundle/src/Resources/views/asideActivity/view.html.twig
index 292e6582e..330a2ab13 100644
--- a/src/Bundle/ChillAsideActivityBundle/src/Resources/views/asideActivity/view.html.twig
+++ b/src/Bundle/ChillAsideActivityBundle/src/Resources/views/asideActivity/view.html.twig
@@ -38,8 +38,10 @@
 				<dt class="inline">{{ 'Duration'|trans }}</dt>
 				<dd>{{ entity.duration|date('H:i') }}</dd>
 
-                <dt class="inline">{{ 'Concerned persons count'|trans }}</dt>
-                <dd>{{ entity.concernedPersonsCount }}</dd>
+                {% if chill_aside_activity_config.show_concerned_persons_count == 'visible' %}
+                    <dt class="inline">{{ 'Concerned persons count'|trans }}</dt>
+                    <dd>{{ entity.concernedPersonsCount }}</dd>
+                {% endif %}
 
 				<dt class="inline">{{ 'Remark'|trans }}</dt>
 				{%- if entity.note is empty -%}