diff --git a/setup.py b/setup.py
index 70f2c2471..1b6c24d3c 100644
--- a/setup.py
+++ b/setup.py
@@ -104,7 +104,7 @@ def clean_version(v):
                             'includes': includes,
                             'excludes': excludes,
                             },
-                 'py2app': {'packages': packages,
+                 'py2app': {'packages': ['retriever'],
                             'includes': includes,
                             'site_packages': True,
                             'resources': [],