diff --git a/readthedocs/restapi/serializers.py b/readthedocs/restapi/serializers.py
index 63616ea19d8..7aac3dd18d2 100644
--- a/readthedocs/restapi/serializers.py
+++ b/readthedocs/restapi/serializers.py
@@ -73,6 +73,7 @@ class Meta(object):
             'identifier', 'verbose_name',
             'active', 'built',
             'downloads',
+            'type',
         )