I wanted to use verbatim with beamer document class, but I noticed that all the tabs are replaced by ^^I.

A solution has been given to this problem Tabs in output file written by xelatex and pdflatex are different

But to solution requires that -8bit is added on the command line of xelatex. If I try to do that, I get the following error in xelatex.log:

2017-05-24 14:26:10,919+0200 INFO  xelatex - starting with command line: xelatex -8bit document.tex
2017-05-24 14:26:10,927+0200 FATAL xelatex - The command line options could not be processed.
2017-05-24 14:26:10,927+0200 FATAL xelatex - Info: optionError="unknown option"
2017-05-24 14:26:10,927+0200 FATAL xelatex - Source: Libraries\MiKTeX\TeXAndFriends\webapp.cpp
2017-05-24 14:26:10,927+0200 FATAL xelatex - Line: 339

So where did -8bit go and is there an alternative?

  • 5
    Welcome to TeX.SX! The -8bit option is valid for the TeX Live implementation of XeTeX; why this isn't accepted by MiKTeX is beyond my understanding.
    – egreg
    Commented May 24, 2017 at 13:03

1 Answer 1


XeTeX 3.14159265-2.6-0.99992 (MiKTeX 2.9) uses option --enable-8bit-chars instead of -8bit.

  • I use version Version 3.14159265-2.6-0.99998 (MiKTeX 2.9.6300 64-bit), which is slightly newer, and --enable-8bit-chars still don't work with xelatex, but does work with pdflatex Commented Aug 8, 2017 at 7:52

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