diff --git a/headphones/request.py b/headphones/request.py
index 4e6b827f..756584ce 100644
--- a/headphones/request.py
+++ b/headphones/request.py
@@ -1,3 +1,18 @@
+#  This file is part of Headphones.
+#
+#  Headphones 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.
+#
+#  Headphones 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 Headphones.  If not, see <http://www.gnu.org/licenses/>.
+
 from headphones import logger
 
 from xml.dom import minidom