diff --git a/setup.py b/setup.py
index 95df365..2f2b164 100644
--- a/setup.py
+++ b/setup.py
@@ -59,6 +59,7 @@
 packages = [
     'apiclient',
     'googleapiclient',
+    'googleapiclient/discovery_cache',
 ]
 
 install_requires = [