diff --git a/src/adapters/trion.js b/src/adapters/trion.js
index 2180b149420..6a0442d0b8f 100644
--- a/src/adapters/trion.js
+++ b/src/adapters/trion.js
@@ -58,17 +58,16 @@ TrionAdapter = function TrionAdapter() {
     var pubId = utils.getBidIdParameter('pubId', bid.params);
     var sectionId = utils.getBidIdParameter('sectionId', bid.params);
     var re = utils.getBidIdParameter('re', bid.params);
-    var url = utils.getTopWindowUrl();
+    var url = window.location.href;
     var sizes = utils.parseSizesInput(bid.sizes).join(',');
 
     var trionUrl = BID_REQUEST_BASE_URL;
 
-    trionUrl = utils.tryAppendQueryString(trionUrl, 'callback', '$$PREBID_GLOBAL$$.handleTrionCB');
+    trionUrl = utils.tryAppendQueryString(trionUrl, 'callback', 'pbjs.handleTrionCB');
     trionUrl = utils.tryAppendQueryString(trionUrl, 'bidId', bidId);
     trionUrl = utils.tryAppendQueryString(trionUrl, 'pubId', pubId);
     trionUrl = utils.tryAppendQueryString(trionUrl, 'sectionId', sectionId);
     trionUrl = utils.tryAppendQueryString(trionUrl, 're', re);
-    trionUrl = utils.tryAppendQueryString(trionUrl, 'slot', bid.placementCode);
     if (url) {
       trionUrl += 'url=' + url + '&';
     }
diff --git a/test/spec/adapters/trion_spec.js b/test/spec/adapters/trion_spec.js
index 874d3df737b..416d4313c87 100644
--- a/test/spec/adapters/trion_spec.js
+++ b/test/spec/adapters/trion_spec.js
@@ -1,7 +1,6 @@
 import { expect } from 'chai';
 import trionAdapter from 'src/adapters/trion';
 import bidmanager from 'src/bidmanager';
-import * as utils from 'src/utils';
 const CONSTANTS = require('src/constants.json');
 const adloader = require('src/adloader');
 
@@ -108,8 +107,7 @@ describe('Trion adapter tests', () => {
 
       let bidUrl = spyLoadScript.getCall(0).args[0];
       expect(bidUrl).to.include('re=1');
-      expect(bidUrl).to.include(utils.getTopWindowUrl());
-      expect(bidUrl).to.include('slot=' + PLACEMENT_CODE);
+      expect(bidUrl).to.include(window.location.href);
       delete params.re;
     });