SOAP Problem

I'm using the SOAP::RPC::Driver to access a web service for which I don't have a WSDL (actually, there is one, but it's not well formed and it the WSDLDriverFactory chokes on it).

So, I create the driver:

QUERY_URL = "http://209.27.15.27/services/Query"
stub = SOAP::RPC::Driver.new(QUERY_URL)

Now I add a method. This method takes three parameters: a string, a long, and a long

stub.add_method('getModuleList', 'securityToken', 'userId', 'companyId')

Then I call the method. The problem is, the XML that's getting created is specifying int instead of long for the second and third parameter:

queryRet = stub.getModuleList(security_token, user_id.to_i, company_id.to_i)

which results in:

#<SOAP::Mapping::Object:0x104d7cc>: org.xml.sax.SAXException: Bad types (int -> long) (SOAP::FaultError)

Is there any way to "force" it to specify that these parameters are long? It seems to only work correctly if user_id and company_id are big enough to force it to go to a Bignum. Any help would be greatly appreciated!

Thanks,
Jeff