diff --git a/sdnctrlhandler/models.py b/sdnctrlhandler/models.py
index bd4b2ab..ed2a5ae 100644
--- a/sdnctrlhandler/models.py
+++ b/sdnctrlhandler/models.py
@@ -1,3 +1,19 @@
+#
+#   Copyright 2018 EveryUP Srl
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an  BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+
 from __future__ import unicode_literals
 
 from django.db import models