diff --git a/hex-grid/src/main.rs b/hex-grid/src/main.rs
index 1a1d860..37e3bed 100644
--- a/hex-grid/src/main.rs
+++ b/hex-grid/src/main.rs
@@ -1,3 +1,15 @@
+/*
+Copyright 2023, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of the Luminescent Dreams Tools.
+
+Luminescent Dreams Tools 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.
+
+Luminescent Dreams Tools 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 Lumeto. If not, see <https://www.gnu.org/licenses/>.
+*/
+
 use cairo::{Context, Path};
 use coordinates::{hex_map::parse_data, AxialAddr};
 use gio::resources_lookup_data;