diff --git a/site/blueprints/pages/event.yml b/site/blueprints/pages/event.yml
index c8b04a6..8d23783 100644
--- a/site/blueprints/pages/event.yml
+++ b/site/blueprints/pages/event.yml
@@ -14,9 +14,9 @@ tabs:
             when:
               isMapadoEvent: true
             width: 1/4
-          category:
+          categories:
             label: Catégorie
-            type: select
+            type: multiselect
             width: 1/4
             options:
               type: query
diff --git a/site/controllers/program.php b/site/controllers/program.php
index 6167cc0..c1fad68 100644
--- a/site/controllers/program.php
+++ b/site/controllers/program.php
@@ -39,7 +39,7 @@ function createArraySession($event, $session) {
   $arraySession['bookableStock'] = $isMapadoEvent ? $session->bookableStock()->value() : 'free';
   $arraySession['totalStock'] = $isMapadoEvent ? (int) $event->totalStock()->value() : 'free';
   $arraySession['color'] = $event->color();
-  $arraySession['category'] = $event->category();
+  $arraySession['categories'] = $event->categories();
 
   return $arraySession;
 
diff --git a/site/templates/program.php b/site/templates/program.php
index 2ce0cf7..e0d2d1b 100644
--- a/site/templates/program.php
+++ b/site/templates/program.php
@@ -79,7 +79,7 @@
                         throw new Exception($session['title'], 1);
                       }
                   ?>
-                    <template x-if="tab === 'Calendrier' || ('<?= $session['category'] ?>'.length > 0 && tab.includes('<?= $session['category'] ?>'))">
+                    <template x-if="tab === 'Calendrier' || ('<?= $session['categories'] ?>'.length > 0 && tab.includes('<?= $session['categories'] ?>'))">
                     <li class="collapsable__item--padding session grid js-link" style="--color: <?= $session['color'] ?>">
                       <div class="session__info">
                         <p><?= $formattedDate ?></p>