How to change default document title send to BI Inbox?

Hi,

We are trying to change the default document title when it's sent to BI Inbox. For example, the title of a Webi document appears in the BI Inbox as  "My_File : 12345" and what we want is the title to be like "My_File".

Is there any option to do this by default?

Thanks,

Arnau.