diff --git a/setup.py b/setup.py
--- a/setup.py
+++ b/setup.py
@@ -28,6 +28,8 @@
         'swh.storage.checker',
         'swh.storage.objstorage',
         'swh.storage.objstorage.api',
+        'swh.storage.objstorage.multiplexer',
+        'swh.storage.objstorage.multiplexer.filter',
         'swh.storage.tests',
     ],
     scripts=[