diff --git a/docs/data.rst b/docs/data.rst
index f90b1b181..f21f1c8c2 100644
--- a/docs/data.rst
+++ b/docs/data.rst
@@ -39,6 +39,8 @@ Base classes (for using other data sources)
 .. autoclass:: MarketData
     
     .. automethod:: serve
+
+    .. automethod:: universe_at_time
     
     .. automethod:: trading_calendar