diff --git a/importer/indico_importer/__init__.py b/importer/indico_importer/__init__.py
index 5d8ee42..14799b3 100644
--- a/importer/indico_importer/__init__.py
+++ b/importer/indico_importer/__init__.py
@@ -14,6 +14,8 @@
 # You should have received a copy of the GNU General Public License
 # along with Indico; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import unicode_literals
+
 from indico.core import signals
 from indico.core.plugins import IndicoPlugin, IndicoPluginBlueprint, plugin_url_rule_to_js
 from MaKaC.webinterface.pages.conferences import WPConfModifScheduleGraphic
diff --git a/importer/indico_importer/controllers.py b/importer/indico_importer/controllers.py
index 2be9ccf..7f78f5c 100644
--- a/importer/indico_importer/controllers.py
+++ b/importer/indico_importer/controllers.py
@@ -14,6 +14,8 @@
 # You should have received a copy of the GNU General Public License
 # along with Indico; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import unicode_literals
+
 from flask import jsonify
 from flask_pluginengine import current_plugin
 
diff --git a/importer/indico_importer/converter.py b/importer/indico_importer/converter.py
index d6e3aa9..bf89da9 100644
--- a/importer/indico_importer/converter.py
+++ b/importer/indico_importer/converter.py
@@ -14,6 +14,8 @@
 # You should have received a copy of the GNU General Public License
 # along with Indico; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import unicode_literals
+
 
 class RecordConverter(object):
     """
diff --git a/importer/indico_importer/utils.py b/importer/indico_importer/utils.py
index 6732779..388a008 100644
--- a/importer/indico_importer/utils.py
+++ b/importer/indico_importer/utils.py
@@ -14,6 +14,8 @@
 # You should have received a copy of the GNU General Public License
 # along with Indico; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import unicode_literals
+
 
 def parse_datetime(string):
     split_datetime = string[0].split('T')
diff --git a/importer/setup.py b/importer/setup.py
index 809696c..9e0841d 100644
--- a/importer/setup.py
+++ b/importer/setup.py
@@ -14,6 +14,8 @@
 # You should have received a copy of the GNU General Public License
 # along with Indico; if not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import unicode_literals
+
 from setuptools import setup, find_packages