`crontab -e: E212: Can't open file for writing` when using gvim (works with vi)

As a user, I want to edit my crontab. crontab -e gvim is launched. It prints "/tmp/crontab.IUVYhK/crontab" [New DIRECTORY] I can write but as soon as I try to write the temporary file, I get this error message: "crontab.IUVYhK/crontab" E212: Can't open file for writing However, I have no issue when using vi as editor: EDITOR=vi crontab -e Is it wrong to set gvim as EDITOR? Shold I use vi? I do very few admin tasks on this desktop machine, so I never ran into any issue.