diff --git a/vtm/src/org/oscim/tiling/source/HttpEngine.java b/vtm/src/org/oscim/tiling/source/HttpEngine.java
index 63b29948..c99429a4 100644
--- a/vtm/src/org/oscim/tiling/source/HttpEngine.java
+++ b/vtm/src/org/oscim/tiling/source/HttpEngine.java
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2014 Hannes Janetzek
+ *
+ * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
+ *
+ * This program is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 package org.oscim.tiling.source;
 
 import java.io.IOException;
diff --git a/vtm/src/org/oscim/tiling/source/ITileDecoder.java b/vtm/src/org/oscim/tiling/source/ITileDecoder.java
index 5f48c8f0..0412bb15 100644
--- a/vtm/src/org/oscim/tiling/source/ITileDecoder.java
+++ b/vtm/src/org/oscim/tiling/source/ITileDecoder.java
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2013 Hannes Janetzek
+ *
+ * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
+ *
+ * This program is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 package org.oscim.tiling.source;
 
 import java.io.IOException;
diff --git a/vtm/src/org/oscim/tiling/source/OkHttpEngine.java b/vtm/src/org/oscim/tiling/source/OkHttpEngine.java
index 7e39ad73..1e892e96 100644
--- a/vtm/src/org/oscim/tiling/source/OkHttpEngine.java
+++ b/vtm/src/org/oscim/tiling/source/OkHttpEngine.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright 2014 Charles Greb
+ * Copyright 2014 Hannes Janetzek
+ *
+ * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
+ *
+ * This program is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 package org.oscim.tiling.source;
 
 import java.io.IOException;