BID and Custom Report based on opened entity form

Hi

I have created a report in BID with the following fetch-query :

<fetch version="1.0" output-format="xml-platform" mapping="logical" distinct="false"><entity name="invoice"><attribute name="name" /><attribute name="customerid" /><attribute name="statuscode" /><attribute name="totalamount" /><attribute name="invoiceid" /><order attribute="name" descending="false" /><filter type="and"><condition attribute="invoiceid" operator="eq" value="@invoiceid" /></filter></entity></fetch>

And here is the configuration for report dataset :

But When I want to use it in opened form of some invoice,

it does not load the invoice data and wants me to  suply invoice id as below :

I want it to load invoice automatically without asking the id.