diff --git a/conftest.py b/conftest.py
index a74eea4..4f2d021 100644
--- a/conftest.py
+++ b/conftest.py
@@ -1,19 +1,20 @@
 # Copyright (C) 2020  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 import pytest
 
 pytest_plugins = [
     "swh.scheduler.pytest_plugin",
     "swh.storage.pytest_plugin",
     "swh.loader.pytest_plugin",
 ]
 
 
 @pytest.fixture(scope="session")
 def swh_scheduler_celery_includes(swh_scheduler_celery_includes):
     return swh_scheduler_celery_includes + [
         "swh.loader.mercurial.tasks",
+        "swh.loader.mercurial.tasks_from_disk",
     ]