diff --git a/ContainerAwareInterface.php b/ContainerAwareInterface.php
index 45a680b..396ce79 100644
--- a/ContainerAwareInterface.php
+++ b/ContainerAwareInterface.php
@@ -1,17 +1,27 @@
 <?php
 
+/*
+ * This file is part of the MassiveBuildBundle
+ *
+ * (c) MASSIVE ART WebServices GmbH
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
 namespace Massive\Bundle\BuildBundle;
 
-use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\DependencyInjection\ContainerAwareInterface as SymfonyContainerAwareInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
 
 if (\class_exists(SymfonyContainerAwareInterface::class)) {
     \class_alias(ContainerAwareInterface::class, SymfonyContainerAwareInterface::class);
 } else {
-      interface ContainerAwareInterface {
-          /**
-           * @return void
-           */
-          public function setContainer(?ContainerInterface $container = null);
-      }
+    interface ContainerAwareInterface
+    {
+        /**
+         * @return void
+         */
+        public function setContainer(?ContainerInterface $container = null);
+    }
 }
diff --git a/Tests/ProphecyTrait.php b/Tests/ProphecyTrait.php
index b8887af..24b1255 100644
--- a/Tests/ProphecyTrait.php
+++ b/Tests/ProphecyTrait.php
@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of the MassiveBuildBundle
+ *
+ * (c) MASSIVE ART WebServices GmbH
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
 namespace Massive\Bundle\BuildBundle\Tests;
 
 use Prophecy\PhpUnit\ProphecyTrait as ProphecyProphecyTrait;