diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..075dd45
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,26 @@
+Copyright (c) 2019 tastytea <tastytea@tastytea.de>. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors
+may be used to endorse or promote products derived from this software without
+specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/examples/example.cpp b/examples/example.cpp
index 63792c9..c76dfba 100644
--- a/examples/example.cpp
+++ b/examples/example.cpp
@@ -1,3 +1,5 @@
+/*  This file is part of xdgcfg. */
+
 #include <iostream>
 #include <libconfig.h++>
 #include "xdgcfg.hpp"
diff --git a/include/xdgcfg.hpp b/include/xdgcfg.hpp
index a927284..cbec7a8 100644
--- a/include/xdgcfg.hpp
+++ b/include/xdgcfg.hpp
@@ -1,5 +1,7 @@
-/*  Public Domain / CC-0
- *  Author: tastytea <tastytea@tastytea.de>
+/*  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify it
+ *  under the terms of the BSD-3-Clause license.
  */
 
 #ifndef XDGCFG_HPP
diff --git a/src/xdgcfg.cpp b/src/xdgcfg.cpp
index 8700232..066012f 100644
--- a/src/xdgcfg.cpp
+++ b/src/xdgcfg.cpp
@@ -1,5 +1,7 @@
-/*  Public Domain / CC-0
- *  Author: tastytea <tastytea@tastytea.de>
+/*  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify it
+ *  under the terms of the BSD-3-Clause license.
  */
 
 #include <basedir.h>