diff --git a/setup.py b/setup.py
index 182c20e..6dcff66 100644
--- a/setup.py
+++ b/setup.py
@@ -45,6 +45,7 @@ install_requires = [
     'Flask-BabelEx>=0.9.4',
     'Flask-WebpackExt>=1.0.0',
     'invenio-assets>=1.2.0,<1.3.0',
+    'invenio-i18n>=1.2.0',
 ]
 
 packages = find_packages()
diff --git a/tests/conftest.py b/tests/conftest.py
index d0594e3..deda3d4 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -18,11 +18,25 @@ import tempfile
 import pytest
 from flask import Flask
 from flask_babelex import Babel
+from invenio_i18n import InvenioI18N
 
 from invenio_theme_tugraz import inveniothemetugraz
 from invenio_theme_tugraz.views import blueprint
 
 
+@pytest.fixture()
+def app():
+    """Flask app fixture."""
+    app = Flask('myapp')
+    app.config.update(
+        I18N_LANGUAGES=[('en', 'English'), ('de', 'German')],
+    )
+    Babel(app)
+    InvenioI18N(app)
+    app.register_blueprint(create_blueprint_from_app(app))
+    return app
+
+
 @pytest.fixture(scope='module')
 def celery_config():
     """Override pytest-invenio fixture.