diff --git a/README.md b/README.md
index b72745b..ec223ab 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@
 [![Chat](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/haskell-nix/Lobby)
 [![Hackage](https://img.shields.io/hackage/v/hnix?color=purple&label=Latest%20release)](https://hackage.haskell.org/package/hnix)
 [![Hackage Matrix Builder](https://img.shields.io/badge/Hackage%20Matrix-Builder-green)](https://matrix.hackage.haskell.org/package/hnix)
+[![Nixpkgs Hydra CI](https://img.shields.io/badge/Nixpkgs%20Hydra-CI-green)](https://hydra.nixos.org/job/nixpkgs/trunk/haskellPackages.hnix.x86_64-linux#tabs-status)
 [![Dependencies](https://img.shields.io/hackage-deps/v/hnix?label=Dependencies)](https://packdeps.haskellers.com/feed?needle=hnix)
 
 Haskell parser, evaluator and type checker for the Nix language.