1 files changed, 2 insertions, 0 deletions

diff --git a/pso.h b/pso.h
index e5e90c3..e9d9570 100644
--- a/pso.h
+++ b/pso.h
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2020 Florian Fischer
 #pragma once
 
 #include <stdlib.h>