diff --git a/swh/storage/tests/storage_testing.py b/swh/storage/tests/storage_testing.py
--- a/swh/storage/tests/storage_testing.py
+++ b/swh/storage/tests/storage_testing.py
@@ -44,7 +44,7 @@
                     },
                 },
                 'journal_writer': {
-                    'cls': 'inmemory',
+                    'cls': 'memory',
                 },
             },
         }
diff --git a/swh/storage/tests/test_api_client.py b/swh/storage/tests/test_api_client.py
--- a/swh/storage/tests/test_api_client.py
+++ b/swh/storage/tests/test_api_client.py
@@ -23,10 +23,10 @@
 class RemotePgStorageFixture(StorageTestDbFixture, ServerTestFixture,
                              unittest.TestCase):
     def setUp(self):
-        journal_writer = get_journal_writer(cls='inmemory')
+        journal_writer = get_journal_writer(cls='memory')
 
         def mock_get_journal_writer(cls, args=None):
-            assert cls == 'inmemory'
+            assert cls == 'memory'
             return journal_writer
 
         self.journal_writer = journal_writer
@@ -54,7 +54,7 @@
                         },
                     },
                     'journal_writer': {
-                        'cls': 'inmemory',
+                        'cls': 'memory',
                     }
                 }
             }
@@ -81,13 +81,13 @@
                 'cls': 'memory',
                 'args': {
                     'journal_writer': {
-                        'cls': 'inmemory',
+                        'cls': 'memory',
                     }
                 }
             }
         }
         self.__storage = InMemoryStorage(
-            journal_writer={'cls': 'inmemory'})
+            journal_writer={'cls': 'memory'})
 
         self._get_storage_patcher = unittest.mock.patch(
             'swh.storage.api.server.get_storage', return_value=self.__storage)
diff --git a/swh/storage/tests/test_in_memory.py b/swh/storage/tests/test_in_memory.py
--- a/swh/storage/tests/test_in_memory.py
+++ b/swh/storage/tests/test_in_memory.py
@@ -51,7 +51,7 @@
             pass
 
     def reset_storage(self):
-        self.storage = Storage(journal_writer={'cls': 'inmemory'})
+        self.storage = Storage(journal_writer={'cls': 'memory'})
         self.journal_writer = self.storage.journal_writer