diff --git a/libretroshare/src/file_sharing/file_tree.h b/libretroshare/src/file_sharing/file_tree.h
index 8aaa9dff6..0505ceed5 100644
--- a/libretroshare/src/file_sharing/file_tree.h
+++ b/libretroshare/src/file_sharing/file_tree.h
@@ -1,3 +1,28 @@
+/*
+ * RetroShare C++ File lists IO methods.
+ *
+ *      file_sharing/file_tree.h
+ *
+ * Copyright 2017 by csoler
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License Version 2 as published by the Free Software Foundation.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA.
+ *
+ * Please report all bugs and problems to "retroshare.project@gmail.com".
+ *
+ */
+
 #include "retroshare/rsfiles.h"
 
 class FileTreeImpl: public FileTree