I use C-h instead of backspace, and it does not work in helm's minibuffer, however it works in normal minibuffer.

The related section from my init.el

(global-unset-key (kbd "<backspace>"))
(global-unset-key (kbd "C-h"))
(global-set-key (kbd "C-h") 'delete-backward-char)
(global-unset-key (kbd "<f1>"))
(global-set-key (kbd "<f1>") help-map)
(global-unset-key (kbd "M-h"))
(global-set-key (kbd "s-h") 'mark-paragraph)
(global-set-key (kbd "M-h") 'backward-kill-word)
  • 1
    See emacs.stackexchange.com/q/5486/2355. Commented Feb 5, 2016 at 16:24
  • @Constantine Thanks I made it work by your clue, but I was not able to rebind helm-find-files-C-h-map to anything, because it does not exist.
    – atevm
    Commented Feb 5, 2016 at 17:09
  • Huh. Well, helm-find-files-C-h-map did exist back then. I may need to update that answer. Could you please submit an answer explaining how you made it work and accept it so that this question is not considered "unanswered"? Thanks! Commented Feb 5, 2016 at 17:40
  • @Constantine well I only added (define-key helm-map (kbd "C-h") nil) to my config, it works, but I could not find the function for which it was bound, and maybe it is something important. update: I greped helm source repository on my machine, I update the question with the result.
    – atevm
    Commented Feb 5, 2016 at 17:55
  • 1
    @Constantine I wrote an answer instead of updating the question. Thanks you helped a lot.
    – atevm
    Commented Feb 5, 2016 at 18:12

1 Answer 1


Thanks to Constantine I solved the problem, the only difference that newer helm use C-h C-d for the helm-enable-or-switch-to-debug function. So it still can be unbound as Constantine advised.

(define-key helm-map (kbd "C-h") nil)

if somebody really needs that function, it should be rebound to some other keys:

(define-key helm-map (kbd "s-w")  'helm-enable-or-switch-to-debug)

I used grep to find this out.

➜  helm git:(master) grep -Rn "C-h"                  
README.md:165:Once you are in the helm session (of `helm-M-x` or any one else) you can hit either `C-h m` or
README.md:168:Sometime `C-c ?` is not available, in this case you will see in mode-line `C-h m` instead of `C-c ?`.
README.md:273:- `helm-apropos`: Description of functions, variables, etc... Use it instead of Most `C-h` commands.
helm-files.el:758:                       "C-h m: Help, \\[universal-argument]: Insert output at point")
helm.el:238:    (define-key map (kbd "C-h C-d")    'undefined)
helm.el:239:    (define-key map (kbd "C-h C-d")    'helm-enable-or-switch-to-debug)
helm.el:242:    (define-key map (kbd "C-h C-h")    'undefined)
helm.el:243:    (define-key map (kbd "C-h h")      'undefined)
helm.el:817:C-h m\t\tRun this generic help for helm.
emacs-helm.sh:77:;; You will find embeded help for most helm commands with \`C-h m'.\n\

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