diff --git a/pjsip-apps/src/python/samples/registration.py b/pjsip-apps/src/python/samples/registration.py
index 973ea2f..6c07e96 100644
--- a/pjsip-apps/src/python/samples/registration.py
+++ b/pjsip-apps/src/python/samples/registration.py
@@ -5,6 +5,20 @@
 #
 # Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
 #
+# 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 2 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+#
 import sys
 import pjsua as pj
 import threading