diff --git a/src/Form/Part/PartAssociationType.php b/src/Form/Part/PartAssociationType.php
index f640d38a..bf9ec4f9 100644
--- a/src/Form/Part/PartAssociationType.php
+++ b/src/Form/Part/PartAssociationType.php
@@ -64,7 +64,7 @@ class PartAssociationType extends AbstractType
 
     }
 
-    public function configureOptions(OptionsResolver $resolver)
+    public function configureOptions(OptionsResolver $resolver): void
     {
         $resolver->setDefaults([
             'data_class' => PartAssociation::class,