diff --git a/setup.cfg b/setup.cfg
index 4470a55..f5a546d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -46,7 +46,7 @@ install_requires =
     statsmodels
     filterpy
     ipython
-packages = find:
+packages = find_namespace:
 
 [options.package_data]
-* = Demo/**/*, Demo/**/**/*, Empty_project/**/*, Empty_project/**/**/*
+* = Demo/**, Empty_project/**, Empty_project/.*