diff --git a/src/Bundle/ChillPersonBundle/Export/Filter/PersonFilters/GenderFilter.php b/src/Bundle/ChillPersonBundle/Export/Filter/PersonFilters/GenderFilter.php
index 9db093885..bc90eb035 100644
--- a/src/Bundle/ChillPersonBundle/Export/Filter/PersonFilters/GenderFilter.php
+++ b/src/Bundle/ChillPersonBundle/Export/Filter/PersonFilters/GenderFilter.php
@@ -39,7 +39,7 @@ class GenderFilter implements
         $where = $qb->getDQLPart('where');
         $isIn = $qb->expr()->in('person.gender', ':person_gender');
 
-        if (!\in_array('null', $data['accepted_genders'], true)) {
+        if (!\in_array('null', $data['accepted_genders']->toArray(), true)) {
             $clause = $isIn;
         } else {
             $clause = $qb->expr()->orX($isIn, $qb->expr()->isNull('person.gender'));
@@ -53,7 +53,7 @@ class GenderFilter implements
 
         $qb->add('where', $where);
         $qb->setParameter('person_gender', \array_filter(
-            $data['accepted_genders'],
+            $data['accepted_genders']->toArray(),
             static fn ($el) => 'null' !== $el
         ));
     }
@@ -108,7 +108,7 @@ class GenderFilter implements
 
     public function validateForm($data, ExecutionContextInterface $context)
     {
-        if (!\is_array($data['accepted_genders']) || 0 === \count($data['accepted_genders'])) {
+        if (!\is_iterable($data['accepted_genders']) || 0 === \count($data['accepted_genders'])) {
             $context->buildViolation('You should select an option')
                 ->addViolation();
         }