diff --git a/src/lib/Form/Type/FieldType/AuthorFieldType.php b/src/lib/Form/Type/FieldType/AuthorFieldType.php
index c0ec72f..10d27b0 100644
--- a/src/lib/Form/Type/FieldType/AuthorFieldType.php
+++ b/src/lib/Form/Type/FieldType/AuthorFieldType.php
@@ -70,7 +70,7 @@ public function buildForm(FormBuilderInterface $builder, array $options)
         $builder
             ->add('authors', AuthorCollectionType::class, [])
             ->addViewTransformer($this->getViewTransformer())
-            ->addEventListener(FormEvents::POST_SUBMIT, [$this, 'filterOutEmptyAuthors']);
+            ->addEventListener(FormEvents::POST_SET_DATA, [$this, 'filterOutEmptyAuthors']);
     }
 
     /**