diff --git a/swh/vault/__init__.py b/swh/vault/__init__.py
index 425a5b25ce16bf9ae5b1691c4938cca3a1c41de1..96b95503c977664d096cdb2e28913ac930768068 100644
--- a/swh/vault/__init__.py
+++ b/swh/vault/__init__.py
@@ -10,6 +10,8 @@ import logging
 from typing import Dict
 import warnings
 
+from swh.vault.backend import VaultDB
+
 logger = logging.getLogger(__name__)
 
 
@@ -57,4 +59,4 @@ def get_vault(cls: str = "remote", **kwargs):
     return Vault(**kwargs)
 
 
-get_datastore = get_vault
+get_datastore = VaultDB
diff --git a/swh/vault/backend.py b/swh/vault/backend.py
index 5c00fa053ae74d33bd0395f478e136bb752cb268..a14d349fcc4f7e17d1e94b127ae3eabc992cf42d 100644
--- a/swh/vault/backend.py
+++ b/swh/vault/backend.py
@@ -66,18 +66,15 @@ The Software Heritage Developers
 """
 
 
-class VaultBackend:
+class VaultDB:
     """
-    Backend for the Software Heritage Vault.
+    PostgreSQL backend for the Software Heritage Vault.
     """
 
     current_version = 4
 
     def __init__(self, **config):
         self.config = config
-        self.cache = VaultCache(**config["cache"])
-        self.scheduler = get_scheduler(**config["scheduler"])
-        self.storage = get_storage(**config["storage"])
 
         if "db" not in self.config:
             raise ValueError(
@@ -102,6 +99,18 @@ class VaultBackend:
         if db is not self._db:
             db.put_conn()
 
+
+class VaultBackend(VaultDB):
+    """
+    Backend for the Software Heritage Vault.
+    """
+
+    def __init__(self, **config):
+        super().__init__(**config)
+        self.cache = VaultCache(**config["cache"])
+        self.scheduler = get_scheduler(**config["scheduler"])
+        self.storage = get_storage(**config["storage"])
+
     @db_transaction()
     def progress(
         self,
diff --git a/swh/vault/cookers/__init__.py b/swh/vault/cookers/__init__.py
index 9689d96b381c1719bbe3397ccc3a4c94ffe7924e..1053628ee95421d41a56ddd45302f97b5f30560e 100644
--- a/swh/vault/cookers/__init__.py
+++ b/swh/vault/cookers/__init__.py
@@ -12,7 +12,6 @@ from swh.core.config import load_named_config
 from swh.core.config import read as read_config
 from swh.model.swhids import CoreSWHID, ObjectType
 from swh.storage import get_storage
-from swh.vault import get_vault
 from swh.vault.cookers.base import DEFAULT_CONFIG, DEFAULT_CONFIG_PATH, BaseVaultCooker
 from swh.vault.cookers.directory import DirectoryCooker
 from swh.vault.cookers.git_bare import GitBareCooker
@@ -98,6 +97,8 @@ def get_cooker(bundle_type: str, swhid: CoreSWHID):
         EnvironmentError in case the vault configuration reference a non remote class.
 
     """
+    from swh.vault import get_vault
+
     if "SWH_CONFIG_FILENAME" in os.environ:
         cfg = read_config(os.environ["SWH_CONFIG_FILENAME"], DEFAULT_CONFIG)
     else: