diff --git a/src/chat/server.yml b/src/chat/server.yml
index 2c514fc..4658c53 100644
--- a/src/chat/server.yml
+++ b/src/chat/server.yml
@@ -1 +1,17 @@
+# This is part of WHY2
+# Copyright (C) 2022 Václav Šmejkal
+
+# 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/>.
+
 user_pick_username: true # User will be prompted for his username on connect or will have to set it onetime [NOT IMPLEMENTED]