diff --git a/index.bs b/index.bs
index 36f8ca4..8322e04 100644
--- a/index.bs
+++ b/index.bs
@@ -500,11 +500,13 @@ running.
A [=/connection=]'s [=get the parent=] algorithm returns
null.
-A `versionchange` will be fired at an open
+An event with type `versionchange` will be fired at an open
[=/connection=] if an attempt is made to upgrade or delete the
[=database=]. This gives the [=/connection=] the opportunity to close
to allow the upgrade or delete to proceed.
+An event with type `close` will be fired at a [=/connection=] if the connection is [=/close a database connection|closed=] abnormally.
+