diff --git a/setup.py b/setup.py
index 883eec8..a67507f 100755
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@
       url='http://cxc.harvard.edu/mta/ASPECT/tool_doc/pydocs/Ska.quatutil.html',
       version=__version__,
       zip_safe=False,
-      packages=['Ska'],
+      packages=['Ska', 'Ska.quatutil', 'Ska.quatutil.tests'],
       tests_require=['pytest'],
       cmdclass=cmdclass,
       )