diff --git a/pkgs/helix.nix b/pkgs/helix.nix
index dc2be6a..adedbd8 100644
--- a/pkgs/helix.nix
+++ b/pkgs/helix.nix
@@ -31,6 +31,7 @@ let
       lldb
       rust-analyzer
       nil
+      haskell-language-server
     ]
   );
 in