diff --git a/geoportal/tests/functional/conftest.py b/geoportal/tests/functional/conftest.py
index 7f7d376e1d..686b1500f8 100644
--- a/geoportal/tests/functional/conftest.py
+++ b/geoportal/tests/functional/conftest.py
@@ -31,6 +31,7 @@
 
 import pyramid.request
 import pytest
+import transaction
 from c2c.template.config import config as configuration
 from c2cgeoportal_commons.testing import (
     generate_mappers,