diff --git a/src/Kunstmaan/AdminBundle/Form/UserType.php b/src/Kunstmaan/AdminBundle/Form/UserType.php
index f09084e7cd..b765543f39 100644
--- a/src/Kunstmaan/AdminBundle/Form/UserType.php
+++ b/src/Kunstmaan/AdminBundle/Form/UserType.php
@@ -5,8 +5,8 @@
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\EntityRepository;
 use Doctrine\ORM\QueryBuilder;
-use Kunstmaan\AdminBundle\Entity\GroupInterface;
 use Kunstmaan\AdminBundle\Entity\Group;
+use Kunstmaan\AdminBundle\Entity\GroupInterface;
 use Symfony\Bridge\Doctrine\Form\Type\EntityType;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
diff --git a/src/Kunstmaan/FormBundle/Entity/FormSubmissionFieldTypes/FileFormSubmissionField.php b/src/Kunstmaan/FormBundle/Entity/FormSubmissionFieldTypes/FileFormSubmissionField.php
index d4ec8d50cf..2cf8cbb0e6 100644
--- a/src/Kunstmaan/FormBundle/Entity/FormSubmissionFieldTypes/FileFormSubmissionField.php
+++ b/src/Kunstmaan/FormBundle/Entity/FormSubmissionFieldTypes/FileFormSubmissionField.php
@@ -87,7 +87,7 @@ public function isNull()
     /**
      * Move the file to the given uploadDir and save the filename
      */
-    public function upload($uploadDir, $webDir, Filesystem $fileSystem = null)
+    public function upload($uploadDir, $webDir, ?Filesystem $fileSystem = null)
     {
         // the file property can be empty if the field is not required
         if (null === $this->file) {
diff --git a/src/Kunstmaan/NodeBundle/AdminList/NodeAdminListConfigurator.php b/src/Kunstmaan/NodeBundle/AdminList/NodeAdminListConfigurator.php
index 8667b4d6ae..663d787557 100644
--- a/src/Kunstmaan/NodeBundle/AdminList/NodeAdminListConfigurator.php
+++ b/src/Kunstmaan/NodeBundle/AdminList/NodeAdminListConfigurator.php
@@ -13,7 +13,6 @@
 use Kunstmaan\AdminListBundle\AdminList\FilterType\ORM\BooleanFilterType;
 use Kunstmaan\AdminListBundle\AdminList\FilterType\ORM\DateFilterType;
 use Kunstmaan\AdminListBundle\AdminList\FilterType\ORM\StringFilterType;
-use Kunstmaan\AdminListBundle\AdminList\ItemAction\SimpleItemAction;
 use Kunstmaan\AdminListBundle\AdminList\ListAction\SimpleListAction;
 use Kunstmaan\NodeBundle\Entity\Node;
 use Kunstmaan\NodeBundle\Entity\NodeTranslation;