diff --git a/src/Bundle/ChillPersonBundle/Export/Export/StatAccompanyingCourseDuration.php b/src/Bundle/ChillPersonBundle/Export/Export/StatAccompanyingCourseDuration.php
index 4706593ce..3c77f64c3 100644
--- a/src/Bundle/ChillPersonBundle/Export/Export/StatAccompanyingCourseDuration.php
+++ b/src/Bundle/ChillPersonBundle/Export/Export/StatAccompanyingCourseDuration.php
@@ -25,6 +25,7 @@ use Doctrine\ORM\EntityManagerInterface;
 use Doctrine\ORM\EntityRepository;
 use Doctrine\ORM\Query;
 use Doctrine\ORM\QueryBuilder;
+use LogicException;
 use Symfony\Component\Form\FormBuilderInterface;
 
 class StatAccompanyingCourseDuration implements ExportInterface, GroupedExportInterface