diff --git a/swh/storage/tests/algos/test_snapshot.py b/swh/storage/tests/algos/test_snapshot.py
index 912fb4c2..7e7bafc9 100644
--- a/swh/storage/tests/algos/test_snapshot.py
+++ b/swh/storage/tests/algos/test_snapshot.py
@@ -1,36 +1,44 @@
 # Copyright (C) 2018  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
 
 from hypothesis import given
+import pytest
 
 from swh.model.identifiers import snapshot_identifier, identifier_to_bytes
 from swh.model.hypothesis_strategies import snapshots, branch_names, branch_targets
 
 from swh.storage.algos.snapshot import snapshot_get_all_branches
-from swh.storage.tests.test_in_memory import swh_storage_backend_config  # noqa
+
+
+@pytest.fixture
+def swh_storage_backend_config():
+    yield {
+        "cls": "memory",
+        "journal_writer": None,
+    }
 
 
 @given(snapshot=snapshots(min_size=0, max_size=10, only_objects=False))
 def test_snapshot_small(swh_storage, snapshot):  # noqa
     snapshot = snapshot.to_dict()
     swh_storage.snapshot_add([snapshot])
 
     returned_snapshot = snapshot_get_all_branches(swh_storage, snapshot["id"])
     assert snapshot == returned_snapshot
 
 
 @given(branch_name=branch_names(), branch_target=branch_targets(only_objects=True))
 def test_snapshot_large(swh_storage, branch_name, branch_target):  # noqa
     branch_target = branch_target.to_dict()
 
     snapshot = {
         "branches": {b"%s%05d" % (branch_name, i): branch_target for i in range(10000)}
     }
     snapshot["id"] = identifier_to_bytes(snapshot_identifier(snapshot))
 
     swh_storage.snapshot_add([snapshot])
 
     returned_snapshot = snapshot_get_all_branches(swh_storage, snapshot["id"])
     assert snapshot == returned_snapshot