diff --git a/play-json/jvm/src/test/scala/play/api/libs/json/JsObjectSerializationSpec.scala b/play-json/jvm/src/test/scala/play/api/libs/json/JsObjectSerializationSpec.scala
index 0a6afa3fe..00f5a1599 100644
--- a/play-json/jvm/src/test/scala/play/api/libs/json/JsObjectSerializationSpec.scala
+++ b/play-json/jvm/src/test/scala/play/api/libs/json/JsObjectSerializationSpec.scala
@@ -1,3 +1,7 @@
+/*
+ * Copyright (C) from 2022 The Play Framework Contributors <https://github.com/playframework>, 2011-2021 Lightbend Inc. <https://www.lightbend.com>
+ */
+
 package play.api.libs.json
 
 import org.specs2.mutable._