diff --git a/mediagoblin/models.py b/mediagoblin/models.py
index c05fe3de..31ddf13c 100644
--- a/mediagoblin/models.py
+++ b/mediagoblin/models.py
@@ -44,6 +44,8 @@ class MediaEntry(Document):
         pass
 
 class User(Document):
+    __collection__ = 'users'
+
     structure = {
         'username': unicode,
         'created': datetime.datetime,