In macOS 10.13.5 running Emacs 26.1, key presses involving command+option are not producing the key sequences I expect. How can macOS and/or Emacs be configured to fix this?


  • command+option+r produces M-s-® instead of M-s-r.
  • command+option+j produces M-s-∆ instead of M-s-j.

I'm using stock Emacs built with brew install emacs.

It's interesting to note that Mitsuharu Yamamoto's "Mac Port" Emacs produces the expected key sequences. Maybe a patch is required?


1 Answer 1


This is fixed in the master branch (Emacs 27), so you could try using a nightly build of it or build it yourself.

  • Thanks @Alan Third, I can confirm it's working for me after building from the master branch.
    – mnewt
    Jul 7, 2018 at 15:00

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