diff --git a/lib/tasks/tag_clustering.rake b/lib/tasks/tag_clustering.rake
index 414d2e53035605598c65c7d6e14432d6d4b8725f..c26721a5e708dd2841e228e2409b2270894242ae 100644
--- a/lib/tasks/tag_clustering.rake
+++ b/lib/tasks/tag_clustering.rake
@@ -1,3 +1,21 @@
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
 require 'json'
 namespace :tag do
   desc 'Generate tag clusters'