I'm using the document class scrartcl and want to have an index. This worked fine in the previous years using this source:




Here is a Term\index{Term}.



However, recently I got the error:

(./index.ind [1{/var/lib/texmf/fonts/map/pdftex/updmap/pdftex.map}]

! Class scrartcl Error: undefined old font command `\bf'.

See the scrartcl class documentation for explanation.
Type  H <return>  for immediate help.

l.2 {\bf
? ^C! Interruption.
\GenericError  ...                                
l.2 {\bf

I know that declare the missing command fix the error:


Obviously I'm using some outdated way to generate an index, so my question is how to generate an index within KOMA script class without declare old deprecated commands?

  • Strangely enough, if I correct the missing ` before documentclass` and run pdflatex/makeindex/pdflatex on your example document above, I don't get the error message you reported. There must be something you don't show. Neither makeidx nor scrartcl uses \bf any longer
    – user31729
    Commented Jan 27, 2018 at 6:48
  • Side note: You have some answers to your questions, but accepted none. Please consider to accept them in order to show your appreciation of the help provided by TeX.SE users
    – user31729
    Commented Jan 27, 2018 at 6:55
  • 1
    you are using a non standard makeindex style? Commented Jan 27, 2018 at 8:44

1 Answer 1


Thank you Christian Hupfer and David Carlisle!

Indeed, the Makefile called makeindex with the -s parameter and referred to an style file which was unknown for me. Within the style file the \bf command was used. After replacing that, it works as expected. Thank you very much for your help!

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