haskell-mode-hook bug

;; for haskell-mode bug
(add-hook 'haskell-mode-hook 'capitalized-words-mode)
(add-hook 'haskell-mode-hook 'flyspell-prog-mode)
(add-hook 'haskell-mode-hook 'haskell-decl-scan-mode)
;(add-hook 'haskell-mode-hook 'haskell-indent-mode)
(add-hook 'haskell-mode-hook 'haskell-indentation-mode)
(add-hook 'haskell-mode-hook 'highlight-uses-mode)
(add-hook 'haskell-mode-hook 'imenu-add-menubar-index)
;(add-hook 'haskell-mode-hook 'inf-haskell-mode)
(add-hook 'haskell-mode-hook 'interactive-haskell-mode)
;(add-hook 'haskell-mode-hook 'turn-on-haskell-unicode-input-mode)