diff --git a/docs/index.rst b/docs/index.rst
index 68eb6ca50558..00de6de84f02 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -16,8 +16,8 @@
   storage-acl
   pubsub-api
   pubsub-usage
-  pubsub-subscription
   pubsub-topic
+  pubsub-subscription
   bigquery-usage