diff --git a/swh/objstorage/__init__.py b/swh/objstorage/__init__.py
--- a/swh/objstorage/__init__.py
+++ b/swh/objstorage/__init__.py
@@ -17,7 +17,7 @@
 _STORAGE_CLASSES = {
     'pathslicing': PathSlicingObjStorage,
     'remote': RemoteObjStorage,
-    'in-memory': InMemoryObjStorage,
+    'memory': InMemoryObjStorage,
 }
 
 _STORAGE_CLASSES_MISSING = {