diff --git a/litex/__init__.py b/litex/__init__.py
index ca1e6d75b..2454c0e79 100644
--- a/litex/__init__.py
+++ b/litex/__init__.py
@@ -1,3 +1,6 @@
+# https://packaging.python.org/guides/packaging-namespace-packages/#pkgutil-style-namespace-packages
+__path__ = __import__('pkgutil').extend_path(__path__, __name__)
+
 import sys
 
 # retro-compat 2019-09-30