In designing novels, (Document-class Book KOMA SCRIPT) I prefer to use all-small-caps in the running heads. Please find the first example, where both howards end and chapter 29 were all set in lowercase and old style numerals. I achieved this through \nouppercase and literally converted the necessary letters to lowercase, it looks tidy, has the small caps spacing between letters and good proportion with old style numerals.


\fancyhead[EC]{\rmfamily \sc \small \nouppercase howards end}

all lowercase with smallcaps

However, in some design, normal title-caps are required for bookmarks and chapter title lettering. For instance, in Back to Methuselah, the chapter name needs to be set as The Things Happens with title caps. Here I cheated by setting them all in CAPs, so it looks tidy.

\fancyhead[OC]{\rmfamily \bf  \small \sc \leftmark }

all uppercase

Of course, setting all uppercase lost the lovely spacing that smallcaps will normally have and also the proportion with the old style numerals.

So here is my question, is there a way to stoutly make sure all the letters in headings are in lowercase even they came in as mix caps?

Here is the minimal example:

I'm using LyX, but the principle and code should be the same:

Load fancyhdr in document class Book KOMA-Script two side document. all other default.


\fancyhead[OC]{\rmfamily \small \nouppercase \leftmark}

Dummy text with chapter name This is Mixing Caps will produce the following example, but I want them to be this is mixing caps in the header only so that I can apply small caps on. example

  • 1
    textcase provides \MakeTextLowercase; a counterpart to \MakeUppercase or \MakeTextUppercase. See the UK TeX FAQ entry Case-changing oddities.
    – Werner
    Feb 4, 2013 at 20:54
  • Did you try \MakeLowercase{XXXXX}? It works with report, for example.
    – Sigur
    Feb 4, 2013 at 20:54
  • @Werner I tried \fancyhead[OC]{\rmfamily \bf \small \nouppercase \MakeTextLowercase{\leftmark}} (with or without \nouppercase) It produced error. citing too many }. I am with KOMA Script, Book Class. textcase loaded.
    – Shi Yuan
    Feb 4, 2013 at 21:17
  • @Sigur It produced the same error as above.
    – Shi Yuan
    Feb 4, 2013 at 21:19
  • 1
    \nouppercase takes an argument, it's not a declaration. Can you make a complete example with the relevant code you're using?
    – egreg
    Feb 4, 2013 at 21:29

1 Answer 1


Here's a way:

\usepackage[osf]{mathpazo} % a font with old style figures



enter image description here


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