diff --git a/setup.py b/setup.py
index e78f2a482..0aa5cc66b 100644
--- a/setup.py
+++ b/setup.py
@@ -435,6 +435,7 @@ setup(name=APPNAME,
                 'allmydata.util',
                 'allmydata.web',
                 'allmydata.web.static',
+                'allmydata.web.static.css',
                 'allmydata.windows',
                 'buildtest'],
       classifiers=trove_classifiers,
@@ -443,6 +444,7 @@ setup(name=APPNAME,
       tests_require=tests_require,
       package_data={"allmydata.web": ["*.xhtml"],
                     "allmydata.web.static": ["*.js", "*.png", "*.css"],
+                    "allmydata.web.static.css": ["*.css"],
                     },
       setup_requires=setup_requires,
       entry_points = { 'console_scripts': [ 'tahoe = allmydata.scripts.runner:run' ] },