diff --git a/app/src/main/res/layout/drawer_list_simple.xml b/app/src/main/res/layout/drawer_list_simple.xml
index 0a85002..de4d5d8 100644
--- a/app/src/main/res/layout/drawer_list_simple.xml
+++ b/app/src/main/res/layout/drawer_list_simple.xml
@@ -1,4 +1,24 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+	* This file is part of MountainNavigation.
+	*
+	* MountainNavigation 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.
+	*
+	* MountainNavigation 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 MountainNavigation. If not, see <http://www.gnu.org/licenses/>.
+	*
+	* Copyright (c) 2016 Vinzenz Rosenkanz <vinzenz.rosenkranz@gmail.com>
+	*
+	* Vinzenz Rosenkranz <vinzenz.rosenkranz@gmail.com>
+-->
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="48dp">