diff --git a/init.el.nix b/init.el.nix
index 83f57d4..f15da51 100644
--- a/init.el.nix
+++ b/init.el.nix
@@ -552,6 +552,7 @@ If the new path's directories does not exist, create them."
   :init
   (add-hook 'rust-mode-hook #'eglot-ensure)
   (add-hook 'rust-ts-mode-hook #'eglot-ensure)
+  (add-hook 'haskell-mode-hook #'eglot-ensure)
   (add-hook 'before-save-hook #'eglot-format)
   (add-hook 'eglot-managed-mode-hook
             (lambda () (eglot-inlay-hints-mode -1)))