diff --git a/taiga/projects/history/__init__.py b/taiga/projects/history/__init__.py
index ff39480d..c77c4832 100644
--- a/taiga/projects/history/__init__.py
+++ b/taiga/projects/history/__init__.py
@@ -1,3 +1,19 @@
+# Copyright (C) 2014 Andrey Antukh <niwi@niwi.be>
+# Copyright (C) 2014 Jesús Espino <jespinog@gmail.com>
+# Copyright (C) 2014 David Barragán <bameda@dbarragan.com>
+# This program 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.
+#
+# 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 from .mixins import HistoryResourceMixin
 
 __all__ = ["HistoryResourceMixin"]
diff --git a/taiga/projects/notifications/__init__.py b/taiga/projects/notifications/__init__.py
index 8b29de5b..5978b735 100644
--- a/taiga/projects/notifications/__init__.py
+++ b/taiga/projects/notifications/__init__.py
@@ -1,3 +1,19 @@
+# Copyright (C) 2014 Andrey Antukh <niwi@niwi.be>
+# Copyright (C) 2014 Jesús Espino <jespinog@gmail.com>
+# Copyright (C) 2014 David Barragán <bameda@dbarragan.com>
+# This program 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.
+#
+# 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 from .mixins import WatchedResourceMixin
 from .mixins import WatchedModelMixin
 
diff --git a/taiga/projects/notifications/choices.py b/taiga/projects/notifications/choices.py
index 74387c4f..04e28d89 100644
--- a/taiga/projects/notifications/choices.py
+++ b/taiga/projects/notifications/choices.py
@@ -1,3 +1,19 @@
+# Copyright (C) 2014 Andrey Antukh <niwi@niwi.be>
+# Copyright (C) 2014 Jesús Espino <jespinog@gmail.com>
+# Copyright (C) 2014 David Barragán <bameda@dbarragan.com>
+# This program 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.
+#
+# 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 import enum
 from django.utils.translation import ugettext_lazy as _
 
@@ -13,5 +29,3 @@ NOTIFY_LEVEL_CHOICES = (
     (NotifyLevel.watch, _("Watching")),
     (NotifyLevel.ignore, _("Ignoring")),
 )
-
-
diff --git a/taiga/projects/notifications/services.py b/taiga/projects/notifications/services.py
index eac40e80..90a06049 100644
--- a/taiga/projects/notifications/services.py
+++ b/taiga/projects/notifications/services.py
@@ -14,7 +14,6 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-
 from functools import partial
 
 from django.db.models.loading import get_model