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diff --git a/.Crafter.Build-Project.cpp.kate-swp b/.Crafter.Build-Project.cpp.kate-swp
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diff --git a/Crafter.Build.cppm b/Crafter.Build.cppm
index b884ddf..a927258 100644
--- a/Crafter.Build.cppm
+++ b/Crafter.Build.cppm
@@ -1,3 +1,23 @@
+/*
+Crafter.Build
+Copyright (C) 2024 Jorijn van der Graaf
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library 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
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
+USA
+*/
+
 export module Crafter.Build;
 export import :Project;
 export import :Configuration;
diff --git a/main.cpp b/main.cpp
index 4be2c3e..dd7090a 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,3 +1,23 @@
+/*
+Crafter.Build
+Copyright (C) 2024 Jorijn van der Graaf
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library 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
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
+USA
+*/
+
 #include <cstdint>
 #include <iostream>
 #include <fstream>