diff --git a/src/tracker.cpp b/src/tracker.cpp
index 9cb7d68..0aa7014 100644
--- a/src/tracker.cpp
+++ b/src/tracker.cpp
@@ -1,3 +1,21 @@
+/*
+*	Copyright © 2012-2016 Naim A.
+*
+*	This file is part of UDPT.
+*
+*		UDPT 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.
+*
+*		UDPT 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 UDPT.  If not, see <http://www.gnu.org/licenses/>.
+*/
 #include "tracker.hpp"
 
 namespace UDPT
diff --git a/src/tracker.hpp b/src/tracker.hpp
index 0a0ea73..b5fae24 100644
--- a/src/tracker.hpp
+++ b/src/tracker.hpp
@@ -1,3 +1,21 @@
+/*
+*	Copyright © 2012-2016 Naim A.
+*
+*	This file is part of UDPT.
+*
+*		UDPT 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.
+*
+*		UDPT 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 UDPT.  If not, see <http://www.gnu.org/licenses/>.
+*/
 #pragma once
 
 #include <memory>