diff --git a/tpu.hpp b/tpu.hpp
index 344ffad..35b1edf 100644
--- a/tpu.hpp
+++ b/tpu.hpp
@@ -1,3 +1,14 @@
+/*
+PlutoISA
+Copyright (C) 2024  Patrick_Pluto
+
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 #pragma once
 
 #include <iostream>