diff --git a/setup.py b/setup.py
index 806047a344281..d101358fb63dd 100755
--- a/setup.py
+++ b/setup.py
@@ -648,6 +648,7 @@ def pxd(name):
                 'pandas.core.util',
                 'pandas.computation',
                 'pandas.errors',
+                'pandas.formats',
                 'pandas.io',
                 'pandas.io.json',
                 'pandas.io.sas',