diff --git a/Nelmio/Extractor/ApiDocExtractor.php b/Nelmio/Extractor/ApiDocExtractor.php
index 79c74a3ecf0..cb10e8f4a86 100644
--- a/Nelmio/Extractor/ApiDocExtractor.php
+++ b/Nelmio/Extractor/ApiDocExtractor.php
@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of the DunglasApiBundle package.
+ *
+ * (c) Kévin Dunglas <dunglas@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Dunglas\ApiBundle\Nelmio\Extractor;
 
 use Doctrine\Common\Util\ClassUtils;
diff --git a/Nelmio/Parser/ApiParser.php b/Nelmio/Parser/ApiParser.php
index 3c8acfd9c70..f51f28274d0 100644
--- a/Nelmio/Parser/ApiParser.php
+++ b/Nelmio/Parser/ApiParser.php
@@ -30,12 +30,12 @@ class ApiParser implements ParserInterface
     const OUT_PREFIX = 'dunglas_api_out';
     const IRI = 'IRI';
 
-    private static $typeMap = array(
+    private static $typeMap = [
         'int' => DataTypes::INTEGER,
         'bool' => DataTypes::BOOLEAN,
         'string' => DataTypes::STRING,
         'float' => DataTypes::FLOAT,
-    );
+    ];
 
     /**
      * @var ResourceCollectionInterface
@@ -88,7 +88,7 @@ public function parse(array $item)
      *
      * @return array
      */
-    private function parseClass(ResourceInterface $resource, $entityClass, $io, array $visited = array())
+    private function parseClass(ResourceInterface $resource, $entityClass, $io, array $visited = [])
     {
         $visited[] = $entityClass;
 
@@ -99,7 +99,7 @@ private function parseClass(ResourceInterface $resource, $entityClass, $io, arra
             $resource->getValidationGroups()
         );
 
-        $data = array();
+        $data = [];
         /** @var AttributeMetadataInterface $attributeMetadata */
         foreach ($classMetadata->getAttributesMetadata() as $name => $attributeMetadata) {
             if (
@@ -124,14 +124,14 @@ private function parseClass(ResourceInterface $resource, $entityClass, $io, arra
      *
      * @return array
      */
-    private function parseAttribute(ResourceInterface $resource, AttributeMetadataInterface $attributeMetadata, $io, Type $type = null, array $visited = array())
+    private function parseAttribute(ResourceInterface $resource, AttributeMetadataInterface $attributeMetadata, $io, Type $type = null, array $visited = [])
     {
-        $data = array(
+        $data = [
             'dataType' => null,
             'required' => $attributeMetadata->isRequired(),
             'description' => $attributeMetadata->getDescription(),
             'readonly' => !$attributeMetadata->isWritable(),
-        );
+        ];
 
         if (null == $type) {
             if (null === $attributeMetadata->getType()) {