diff --git a/swh/__init__.py b/swh/__init__.py
new file mode 100644
index 0000000..69e3be5
--- /dev/null
+++ b/swh/__init__.py
@@ -0,0 +1 @@
+__path__ = __import__('pkgutil').extend_path(__path__, __name__)
diff --git a/swh/dataset/__init__.py b/swh/dataset/__init__.py
new file mode 100644
index 0000000..e69de29