 
 (defconst factor--help-font-lock-keywords
   `((,factor--help-headlines-regexp . 'factor-font-lock-help-mode-headlines)
-    ,@factor-font-lock-keywords))
+    ,@factor--font-lock-keywords))
 
 (defun factor-help-mode ()
   "Major mode for displaying Factor help messages.

                "Generic word contract"
                "Inputs and outputs"
                "Parent topics:"
                "Syntax"
                "Vocabulary"
                "Warning"

  (set (make-local-variable 'font-lock-defaults)
       '(factor--help-font-lock-keywords t nil nil nil))
  (set (make-local-variable 'comint-redirect-subvert-readonly) t)
  (set (make-local-variable 'comint-redirect-echo-input) nil)
  (set (make-local-variable 'view-no-disable-on-exit) t)
  (view-mode)
  (setq view-exit-action
