Cobertura reports not in the staged site

[Rodolphe Beck]

Hello,

I tried to generate a website for my project. All the reports work fine
except cobertura: report result is generated into target/site/cobertura but
not copied in the stage directory

the command I use is: site:stage -DstagingDirectory=C:\work\site

Here is the statement in my superpom:
<plugin>
      <groupId>org.codehaus.mojo</groupId>
      <artifactId>cobertura-maven-plugin</artifactId>
      <version>2.1</version>
</plugin>

Thanks
--
Cordialement,
Rodolphe Beck
[EMAIL PROTECTED]