diff --git a/docs/upgrade.rst b/docs/upgrade.rst
index 82ac7cac..901c251d 100644
--- a/docs/upgrade.rst
+++ b/docs/upgrade.rst
@@ -183,3 +183,9 @@ Alternatively, you can rename your collections eg ::
         else:
             print "Upgraded collection names"
 
+
+mongodb 1.8 > 2.0 +
+===================
+
+Its been reported that indexes may need to be recreated to the newer version of indexes.  
+To do this drop indexes and call ``ensure_indexes`` on each model.