diff --git a/debianmemberportfolio/forms.py b/debianmemberportfolio/forms.py
index 4c9612e..85ccadf 100644
--- a/debianmemberportfolio/forms.py
+++ b/debianmemberportfolio/forms.py
@@ -1,7 +1,29 @@
+# -*- python -*-
+# -*- coding: utf-8 -*-
+#
+# Debian Member Portfolio Service views
+#
+# Copyright © 2015-2017 Jan Dittberner <jan@dittberner.info>
+#
+# This file is part of the Debian Member Portfolio Service.
+#
+# Debian Member Portfolio Service 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.
+#
+# Debian Member Portfolio Service 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 <https://www.gnu.org/licenses/>.
+#
 from __future__ import unicode_literals
 
 from flask_babel import gettext as _
-from flask_wtf import Form
+from flask_wtf import FlaskForm
 from wtforms import IntegerField, StringField, RadioField
 from wtforms.validators import (
     AnyOf, DataRequired, Email, Length, Optional, Regexp
@@ -18,7 +40,7 @@ class PlainText(Regexp):
         super(PlainText, self).__init__(r'^[a-zA-Z\-0-9]*$')
 
 
-class DeveloperData(Form):
+class DeveloperData(FlaskForm):
     email = StringField('email', validators=[DataRequired(), Email()])
     name = StringField('name', validators=[DataRequired()])
     gpgfp = StringField('gpgfp', validators=[
@@ -38,5 +60,5 @@ class DeveloperData(Form):
         Optional()])
 
 
-class DeveloperDataRequest(Form):
+class DeveloperDataRequest(FlaskForm):
     email = StringField('email', validators=[DataRequired(), Email()])