5 files changed, 30 insertions, 0 deletions
diff --git a/include/io/izlibstream.h b/include/io/izlibstream.h
index 2b9b91a74a..f7d180f4e8 100644
--- a/include/io/izlibstream.h
+++ b/include/io/izlibstream.h
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2013, 2015 ljfa-ag <ljfa-ag@web.de>
+ *
+ * SPDX-License-Identifier: LGPL-3.0-or-later
+ */
+
+/*
  * libnbt++ - A library for the Minecraft Named Binary Tag format.
  * Copyright (C) 2013, 2015  ljfa-ag
  *
diff --git a/include/io/ozlibstream.h b/include/io/ozlibstream.h
index 65c97c7d69..5ac3dba97f 100644
--- a/include/io/ozlibstream.h
+++ b/include/io/ozlibstream.h
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2013, 2015 ljfa-ag <ljfa-ag@web.de>
+ *
+ * SPDX-License-Identifier: LGPL-3.0-or-later
+ */
+
+/*
  * libnbt++ - A library for the Minecraft Named Binary Tag format.
  * Copyright (C) 2013, 2015  ljfa-ag
  *
diff --git a/include/io/stream_reader.h b/include/io/stream_reader.h
index 3a677db748..821a9ff8d3 100644
--- a/include/io/stream_reader.h
+++ b/include/io/stream_reader.h
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2013, 2015 ljfa-ag <ljfa-ag@web.de>
+ *
+ * SPDX-License-Identifier: LGPL-3.0-or-later
+ */
+
+/*
  * libnbt++ - A library for the Minecraft Named Binary Tag format.
  * Copyright (C) 2013, 2015  ljfa-ag
  *
diff --git a/include/io/stream_writer.h b/include/io/stream_writer.h
index a69508f392..32a01c89c9 100644
--- a/include/io/stream_writer.h
+++ b/include/io/stream_writer.h
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2013, 2015 ljfa-ag <ljfa-ag@web.de>
+ *
+ * SPDX-License-Identifier: LGPL-3.0-or-later
+ */
+
+/*
  * libnbt++ - A library for the Minecraft Named Binary Tag format.
  * Copyright (C) 2013, 2015  ljfa-ag
  *
diff --git a/include/io/zlib_streambuf.h b/include/io/zlib_streambuf.h
index 4241769e4e..e8eea1822f 100644
--- a/include/io/zlib_streambuf.h
+++ b/include/io/zlib_streambuf.h
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2013, 2015 ljfa-ag <ljfa-ag@web.de>
+ *
+ * SPDX-License-Identifier: LGPL-3.0-or-later
+ */
+
 #ifndef ZLIB_STREAMBUF_H_INCLUDED
 #define ZLIB_STREAMBUF_H_INCLUDED