# tocbibind does not add an numbered entry to the toc [duplicate]

Possible Duplicate:

I have a document in report class with

\documentclass[12pt,a4paper]{report}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage[natbib=true,style=numeric,doi=false,isbn=false,url=false,maxcitenames=2{biblatex}
\bibliography{mybib}
\usepackage[numbib]{tocbibind}
\begin{document}
\tableofcontents
\chapter{test}
\printbibliography
\end{document}

This does not add an entry for the bibliography. Changing \printbibliography to

works, although I have no idea what it actually does. Still, the entry is not numbered, it looks like this

1 test ........................... 2
Literatur ........................ 3

My questions: What does heading=bibintoc and how can I have the bibliography numbered automatically?

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