This autocmd in your vimrc will do just that. If it finds any occurrences of a carriage return at the end of a line, and the file was read in Unix format, it will automatically re-read the file in DOS format. This will automatically correct the issue for good when you save the file, but it is most useful for times when you cannot save the file for some reason (maybe it is in a code module that is "locked down" for example). autocmd BufReadPost * nested \ if !exists('b:reload_dos') && !&binary && &ff=='unix' && (0 < search('$', 'nc')) | \ let b:reload_dos = 1 | \ e ++ff=dos | \ endif