diff --git a/DroidFish/src/org/petero/droidfish/FileUtil.java b/DroidFish/src/org/petero/droidfish/FileUtil.java
index 860fa1a..6bdb3c4 100644
--- a/DroidFish/src/org/petero/droidfish/FileUtil.java
+++ b/DroidFish/src/org/petero/droidfish/FileUtil.java
@@ -1,3 +1,21 @@
+/*
+    DroidFish - An Android chess program.
+    Copyright (C) 2016  Peter Österlund, peterosterlund2@gmail.com
+
+    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 <http://www.gnu.org/licenses/>.
+*/
+
 package org.petero.droidfish;
 
 import java.io.BufferedReader;
diff --git a/DroidFish/src/org/petero/droidfish/Util.java b/DroidFish/src/org/petero/droidfish/Util.java
index 1574cfc..9952b46 100644
--- a/DroidFish/src/org/petero/droidfish/Util.java
+++ b/DroidFish/src/org/petero/droidfish/Util.java
@@ -1,3 +1,21 @@
+/*
+    DroidFish - An Android chess program.
+    Copyright (C) 2016  Peter Österlund, peterosterlund2@gmail.com
+
+    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 <http://www.gnu.org/licenses/>.
+*/
+
 package org.petero.droidfish;
 
 import org.petero.droidfish.gamelogic.Piece;