Process Approver link

Hello,

  I have set the process approver link in my system settings but when i receive an email with the link, the link is not translated/converted.
  In my mail i receive :

http://localhost/serviceportal/processapprover.aspx?businessobject={Class/Module/Name}.{Class/Name}&uniqueid={Guid}

I mean, the link should be converted : In my mail, I should receive this one :

http://localhost/serviceportal/processapprover.aspx?businessobject=IncidentManagement.Incident&uniqueid={42E28098-8007-4115-B6FA-000327986482}

but i receive this one

http://localhost/serviceportal/processapprover.aspx?businessobject={Class/Module/Name}.{Class/Name}&uniqueid={Guid}

And if I launch this link http://localhost/serviceportal/processapprover.aspx?businessobject=IncidentManagement.Incident&uniqueid={42E28098-8007-4115-B6FA-000327986482}, my incident opens in service portal

Version : LDSD 7.2.5 patched

Any idea?