diff --git a/setup.py b/setup.py
index 12284f26..9c295dc4 100644
--- a/setup.py
+++ b/setup.py
@@ -59,6 +59,7 @@ setup(
         'Markdown',
         'sqlalchemy>=0.7.0',
         'sqlalchemy-migrate',
+        'mock',
         ## This is optional!
         # 'translitcodec',
         ## For now we're expecting that users will install this from