diff --git a/css/dark.css b/css/dark.css
index c626292..106df69 100644
--- a/css/dark.css
+++ b/css/dark.css
@@ -1,3 +1,20 @@
+/*
+  Copyright (C) 2019-2020  Lucien Cartier-Tilet
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU Affero 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 Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 html {
     background-color: #34495e;
 }
diff --git a/css/light.css b/css/light.css
index 902fbf3..2b249a5 100644
--- a/css/light.css
+++ b/css/light.css
@@ -1,3 +1,20 @@
+/*
+  Copyright (C) 2019-2020  Lucien Cartier-Tilet
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU Affero 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 Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 html {
     background-color: #eee;
 }
diff --git a/css/main.css b/css/main.css
index d23d09a..c446f66 100644
--- a/css/main.css
+++ b/css/main.css
@@ -1,3 +1,20 @@
+/*
+  Copyright (C) 2019-2020  Lucien Cartier-Tilet
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU Affero 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 Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 @import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic|Roboto+Slab:400,700|Inconsolata:400,700);
 
 @font-face {
diff --git a/js/main.js b/js/main.js
index 133c252..fbab8ef 100644
--- a/js/main.js
+++ b/js/main.js
@@ -1,3 +1,20 @@
+/*
+  Copyright (C) 2019-2020  Lucien Cartier-Tilet
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU Affero 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 Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  */
+
 /*jshint esversion: 6 */
 
 window.onload = function() {