diff --git a/lib/Validator/Constraints/FieldValueValidator.php b/lib/Validator/Constraints/FieldValueValidator.php
index 6b57e74a3..523ef31f4 100644
--- a/lib/Validator/Constraints/FieldValueValidator.php
+++ b/lib/Validator/Constraints/FieldValueValidator.php
@@ -13,6 +13,7 @@
 use eZ\Publish\API\Repository\Values\ValueObject;
 use eZ\Publish\Core\FieldType\ValidationError;
 use EzSystems\RepositoryForms\Data\Content\FieldData;
+use EzSystems\RepositoryForms\Data\FieldDefinitionData;
 use Symfony\Component\Validator\Constraint;
 
 /**
@@ -36,7 +37,7 @@ public function validate($value, Constraint $constraint)
         $fieldType = $this->fieldTypeService->getFieldType($fieldTypeIdentifier);
 
         $validationErrors = [];
-        if ($fieldType->isEmptyValue($fieldValue)) {
+        if (!($value instanceof FieldDefinitionData) && $fieldType->isEmptyValue($fieldValue)) {
             if ($fieldDefinition->isRequired) {
                 $validationErrors = [
                     new ValidationError(