diff --git a/bin/kytos b/bin/kytos
index 449760a..1f10177 100755
--- a/bin/kytos
+++ b/bin/kytos
@@ -5,20 +5,7 @@
 #
 # Authors:
 #    Beraldo Leal <beraldo AT ncc DOT unesp DOT br>
-#
-# kytos-utils 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.
-#
-# kytos-utils 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 Foobar.  If not, see <http://www.gnu.org/licenses/>.
-#
+
 """kytos - The kytos command line.
 
 Usage: kytos [-c <file>|--config <file>] <command> [<args>...]
diff --git a/kytos/utils/client.py b/kytos/utils/client.py
index 1b92525..0f6ed46 100644
--- a/kytos/utils/client.py
+++ b/kytos/utils/client.py
@@ -5,20 +5,6 @@
 #
 # Authors:
 #    Beraldo Leal <beraldo AT ncc DOT unesp DOT br>
-#
-# kytos-utils 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.
-#
-# kytos-utils 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 Foobar.  If not, see <http://www.gnu.org/licenses/>.
-#
 
 import json
 import logging
diff --git a/kytos/utils/config.py b/kytos/utils/config.py
index 4c2e531..45c3c54 100644
--- a/kytos/utils/config.py
+++ b/kytos/utils/config.py
@@ -5,19 +5,6 @@
 #
 # Authors:
 #    Beraldo Leal <beraldo AT ncc DOT unesp DOT br>
-#
-# kytos-utils 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.
-#
-# kytos-utils 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 Foobar.  If not, see <http://www.gnu.org/licenses/>.
 
 import logging
 import os