sap web service from function module

Hi

I have a requirement to create a web serive from Function module ,

Here ECC provides web service to .NET platform to consume.

I have created a WSDL , with URL link starts with HTTP.

Now Client prefer the WSDL file URL link to start with HTTPS.

I have tried creating a new web service by configuring SSL (with HTTPS). But i am still getting URL with HTTP.

Is there any way it can be done , so that WSDL File URL can start with HTTPS.

Please reply

Thanks in advance