diff --git a/README.md b/README.md
index b93884d..3e960d4 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,5 @@
 # `op-db` • [![ci](https://github.com/anton-rs/op-db/actions/workflows/ci.yaml/badge.svg?label=ci)](https://github.com/clabby/boilerplate-rs/actions/workflows/ci.yaml) ![license](https://img.shields.io/badge/License-MIT-green.svg?label=license)
 
 Utilities for managing [`op-reth`][reth]'s database.
+
+[reth]: https://github.com/paradigmxyz/reth