diff --git a/nix/flake.nix b/nix/flake.nix
index aa04f34..ec3ce8b 100644
--- a/nix/flake.nix
+++ b/nix/flake.nix
@@ -26,6 +26,7 @@
           statix
           vulnix
           haskellPackages.dhall-nix
+          rnix-lsp
         ];
       };
     });