Text Formatting ⇒ Page header in non-numbered chapter

[Jongomez]

In my Book class document I have:
\tableofcontents
\mainmatter
\include{sections.tex/Introducción}
\addcontentsline{toc}{chapter}{Introducción}

and now normal chapters
\input{sections.tex/01Capítulo1}
\input{sections.tex/02Capítulo2}
\input{sections.tex/03Capítulo3}
\input{sections.tex/04Capítulo4}
\input{sections.tex/05Capítulo5}

QUESTION: After compiling the "normal (numbered" chapters appear with the correct header.
BUT the Chapter "Introducción" appears with the header "CONTENIDO" that belongs to tableof contents.

How can I do to get the header "Introducción" appearing on pages of section "Introducción"?

Thanks so much for your help.

[Jongomez]

Please ignore this post. I'll create a new one, after making some code changes.

Tanks so much for your comprehension.

[Stefan Kottwitz]

Hi Jon,

you could use \markboth to fill the header manually.

Stefan