 
 describe 'AWS.Route53', ->
 
-  r53 = null
+  service = null
+  api = null
   beforeEach ->
-    r53 = new AWS.Route53()
+    service = new AWS.Route53()
+    api = service.api.apiVersion
 
   describe 'setEndpoint', ->
     it 'always enables SSL if no endpoint is set', ->

            }
          ]
          Comment: 'comment'
      r53.changeResourceRecordSets params, (err, data) ->
        helpers.matchXML(this.request.httpRequest.body, xml)

    it 'correctly builds the XML document', ->
      xml =
        """
        <ChangeResourceRecordSetsRequest xmlns="https://route53.amazonaws.com/doc/#{api}/">
          <ChangeBatch>
            <Comment>comment</Comment>
            <Changes>
