diff --git a/book/src/user/elasticsearch.md b/book/src/user/elasticsearch.md
index 5fde4fa92..316f5d9e7 100644
--- a/book/src/user/elasticsearch.md
+++ b/book/src/user/elasticsearch.md
@@ -4,7 +4,7 @@ The goal here is to export block data from Zebra into an [elasticsearch](https:/
 
 **Attention:** This is an experimental feature tested only in the Zcash Testnet.
 
-Elasticsearch support for zebra was introduced to Zebra in [pull request #6274](https://github.com/ZcashFoundation/zebra/pull/6274).
+Elasticsearch support was introduced to Zebra in [pull request #6274](https://github.com/ZcashFoundation/zebra/pull/6274).
 
 ## Download, build and run Elasticsearch
 
diff --git a/zebrad/src/lib.rs b/zebrad/src/lib.rs
index fbfe58eab..1995e8f3e 100644
--- a/zebrad/src/lib.rs
+++ b/zebrad/src/lib.rs
@@ -93,6 +93,11 @@
 //!
 //! * `proptest-impl`: enable randomised test data generation.
 //! * `lightwalletd-grpc-tests`: enable Zebra JSON-RPC tests that query `lightwalletd` using gRPC.
+//!
+//! ### Experimental
+//!
+//! * `elasticsearch`: save block data into elasticsearch database. Read the [elasticsearch](https://zebra.zfnd.org/user/elasticsearch.html)
+//! section of the book for more details.
 
 #![doc(html_favicon_url = "https://zfnd.org/wp-content/uploads/2022/03/zebra-favicon-128.png")]
 #![doc(html_logo_url = "https://zfnd.org/wp-content/uploads/2022/03/zebra-icon.png")]