How to specify numbered sections in Pandoc's PDF outline?

I managed to get numbered section and chapter with pandoc using markdown following sources :

---
toc: true
numbersections: true
---

# Big title
## Section
# Another big title
## section
### subection
## pof
## pif

I used the following command to generate pdf document:

$ pandoc outlinetest.md -o outlinetest.pdf

Chapters and sections are numbered correctly :

But the numbers don’t appear in outlines of evince pdf viewer.
Is it possible to display number in outlines with pandoc ?

>Solution :

You could use the bookmarksnumbered option of the hyperref package:

---
output: pdf_document
toc: true
numbersections: true
---
\hypersetup{bookmarksnumbered}

# Big title
## Section
# Another big title
## section
### subection
## pof
## pif