diff --git a/src/Bundle/ChillPersonBundle/DataFixtures/ORM/LoadAccompanyingPeriod.php b/src/Bundle/ChillPersonBundle/DataFixtures/ORM/LoadAccompanyingPeriod.php
index 25423fa3f..a30943bcb 100644
--- a/src/Bundle/ChillPersonBundle/DataFixtures/ORM/LoadAccompanyingPeriod.php
+++ b/src/Bundle/ChillPersonBundle/DataFixtures/ORM/LoadAccompanyingPeriod.php
@@ -56,14 +56,13 @@ class LoadAccompanyingPeriod extends AbstractFixture implements OrderedFixtureIn
         $centerAId = $centerA->getId();
 
         $personIds = $this->container->get('doctrine.orm.entity_manager')
-            ->createQuery(
-                '
-                SELECT person.id
-                FROM ChillPersonBundle:Person person
-                WHERE person.center = ' . $centerAId . '
-                ORDER BY person.id
-                '
-            )
+            ->createQueryBuilder()
+            ->select('p.id')
+            ->from('ChillPersonBundle:Person', 'p')
+            ->where('p.center = :centerAId')
+            ->orderBy('p.id', 'ASC')
+            ->setParameter('centerAId', $centerAId)
+            ->getQuery()
             ->getScalarResult();
 
         $openingDate = new \DateTime('2020-04-01');