diff --git a/src/Bridge/Symfony/Bundle/DependencyInjection/Configuration.php b/src/Bridge/Symfony/Bundle/DependencyInjection/Configuration.php
index 01ab400629b..286848e8582 100644
--- a/src/Bridge/Symfony/Bundle/DependencyInjection/Configuration.php
+++ b/src/Bridge/Symfony/Bundle/DependencyInjection/Configuration.php
@@ -94,7 +94,7 @@ public function getConfigTreeBuilder()
                 ->arrayNode('validator')
                     ->addDefaultsIfNotSet()
                     ->children()
-                        ->variableNode('serialize_payload_fields')->defaultNull()->info('Enable the serialization of payload fields when a validation error is thrown.')->end()
+                        ->variableNode('serialize_payload_fields')->defaultValue([])->info('Set to null to serializer all payload fields when a validation error is thrown, or set the fields you want to include explicitly.')->end()
                     ->end()
                 ->end()
                 ->arrayNode('eager_loading')
diff --git a/src/Serializer/AbstractConstraintViolationListNormalizer.php b/src/Serializer/AbstractConstraintViolationListNormalizer.php
index d977595e470..4d71b1f1839 100644
--- a/src/Serializer/AbstractConstraintViolationListNormalizer.php
+++ b/src/Serializer/AbstractConstraintViolationListNormalizer.php
@@ -67,11 +67,11 @@ protected function getMessagesAndViolations(ConstraintViolationListInterface $co
 
             $constraint = $violation->getConstraint();
             if (
-                null !== $this->serializePayloadFields &&
+                [] !== $this->serializePayloadFields &&
                 $constraint &&
                 $constraint->payload &&
                 // If some fields are whitelisted, only them are added
-                $payloadFields = [] === $this->serializePayloadFields ? $constraint->payload : array_intersect_key($constraint->payload, $this->serializePayloadFields)
+                $payloadFields = null === $this->serializePayloadFields ? $constraint->payload : array_intersect_key($constraint->payload, $this->serializePayloadFields)
             ) {
                 $violationData['payload'] = $payloadFields;
             }
diff --git a/tests/Bridge/Symfony/Bundle/DependencyInjection/ApiPlatformExtensionTest.php b/tests/Bridge/Symfony/Bundle/DependencyInjection/ApiPlatformExtensionTest.php
index 77980595527..c378d7897d7 100644
--- a/tests/Bridge/Symfony/Bundle/DependencyInjection/ApiPlatformExtensionTest.php
+++ b/tests/Bridge/Symfony/Bundle/DependencyInjection/ApiPlatformExtensionTest.php
@@ -1112,7 +1112,7 @@ private function getBaseContainerBuilderProphecy(array $doctrineIntegrationsToLo
             'api_platform.graphql.graphiql.enabled' => true,
             'api_platform.graphql.graphql_playground.enabled' => true,
             'api_platform.resource_class_directories' => Argument::type('array'),
-            'api_platform.validator.serialize_payload_fields' => null,
+            'api_platform.validator.serialize_payload_fields' => [],
             'api_platform.elasticsearch.enabled' => false,
         ];
 
diff --git a/tests/Bridge/Symfony/Bundle/DependencyInjection/ConfigurationTest.php b/tests/Bridge/Symfony/Bundle/DependencyInjection/ConfigurationTest.php
index a6bfb4815f0..e3ded4b4c73 100644
--- a/tests/Bridge/Symfony/Bundle/DependencyInjection/ConfigurationTest.php
+++ b/tests/Bridge/Symfony/Bundle/DependencyInjection/ConfigurationTest.php
@@ -104,7 +104,7 @@ private function runDefaultConfigTests(array $doctrineIntegrationsToLoad = ['orm
             'default_operation_path_resolver' => 'api_platform.operation_path_resolver.underscore',
             'path_segment_name_generator' => 'api_platform.path_segment_name_generator.underscore',
             'validator' => [
-                'serialize_payload_fields' => null,
+                'serialize_payload_fields' => [],
             ],
             'name_converter' => null,
             'enable_fos_user' => true,
diff --git a/tests/Hydra/Serializer/ConstraintViolationNormalizerTest.php b/tests/Hydra/Serializer/ConstraintViolationNormalizerTest.php
index 15604c75bf7..31bd657c150 100644
--- a/tests/Hydra/Serializer/ConstraintViolationNormalizerTest.php
+++ b/tests/Hydra/Serializer/ConstraintViolationNormalizerTest.php
@@ -90,7 +90,7 @@ public function testNormalize(?array $fields, array $result)
     public function payloadFieldsProvider(): iterable
     {
         yield [['severity', 'anotherField1'], ['severity' => 'warning']];
-        yield [[], ['severity' => 'warning', 'anotherField2' => 'aValue']];
-        yield [null, []];
+        yield [null, ['severity' => 'warning', 'anotherField2' => 'aValue']];
+        yield [[], []];
     }
 }