Backup failing because of a wrong search service application name

Hi,

Today I had an issue while doing a backup. My backup tries to backup the search service application but it uses an old name. I have deleted this service application a while ago and then I created a new one with a different name. 

IT shows up with the old name if I do backup-spfarm -showtree  but it is displayed correctly if I look in the service application list in the central adminitration console.

If I do a get-spserviceapplication I get the new name.

Any idea where the issue comes from?