diff --git a/roles/bootstrap-os/defaults/main.yml b/roles/bootstrap-os/defaults/main.yml
index cf40f692d..19362aefb 100644
--- a/roles/bootstrap-os/defaults/main.yml
+++ b/roles/bootstrap-os/defaults/main.yml
@@ -2,3 +2,4 @@
 pypy_version: 2.4.0
 pip_python_modules:
   - httplib2
+  - six