diff --git a/modules/prelude-haskell.el b/modules/prelude-haskell.el
index 01da6aa838..a4022a8bb8 100644
--- a/modules/prelude-haskell.el
+++ b/modules/prelude-haskell.el
@@ -39,7 +39,7 @@
   '(progn
      (defun prelude-haskell-mode-defaults ()
        (subword-mode +1)
-       (haskell-doc-mode)
+       (eldoc-mode +1)
        (haskell-indentation-mode)
        (interactive-haskell-mode +1))