Download link does not show all pdf's

Hi there we are on the latest piwik 2.1.0.
I noticed that under actions>>download the result list do not show files that contain a - in de pdf file names
for instance: g-update.pdf or name-file.pdf are not reconized in downloads .
is this a known problem?
Let me know how to fix this.
I thank you in advance.

wrong forum …i will put him somewhere else

meaning? that it has to work? files with a minus sign in it ? name-file.pdf

sorry it works.
the problem was that in the url did not end as .pdf ( /test.pdf instead it showed / test ) so if it is an pdf but the url does not show .pdf then piwik does not recconize it as an pdf