If I sudo man it works fine, otherwise I'm getting

~$ man ls
fuse: mount failed: Permission denied

Cannot mount AppImage, please check your FUSE setup.
You might still be able to extract the contents of this AppImage 
if you run it with the --appimage-extract option. 
See https://github.com/AppImage/AppImageKit/wiki/FUSE 
for more information
open dir error: No such file or directory

for reference, setting the MANPAGER as per neovim help

export MANPAGER='nvim +Man!'

:Man command works fine from inside nvim.

  • 1
    The title should be a summary of the question, not the first line. Also tell us which OS. Jun 6, 2020 at 15:34

1 Answer 1


I don't really understand why this happens with MANPAGER, but following the suggestion in your error message, I believe this works:

export MANPAGER='nvim --appimage-extract-and-run -c "set ft=man"'


The previous solution is not working anymore in neovim >= v0.6.1. The following is the recommended approach:

export MANPAGER='nvim +Man!'
  • 1
    thank you for that. Unfortunatelly my linux machine is long gone so I can't confirm that this works.
    – sudavid4
    Jul 14, 2021 at 7:31

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