Trivially fixes #614 by simply removing the offending hook.
@ -38,8 +38,6 @@
(require 'utop)
(require 'merlin)
(add-hook 'tuareg-mode-hook 'tuareg-imenu-set-imenu)
(setq auto-mode-alist
(append '(("\\.ml[ily]?\\'" . tuareg-mode)
("\\.topml\\'" . tuareg-mode))