diff --git a/modules/airgridRtdProvider.js b/modules/airgridRtdProvider.js
index 3578cc4b87e..174502d1757 100644
--- a/modules/airgridRtdProvider.js
+++ b/modules/airgridRtdProvider.js
@@ -8,7 +8,6 @@
 import { config } from '../src/config.js';
 import { submodule } from '../src/hook.js';
 import {
-  mergeDeep,
   deepSetValue,
   deepAccess,
 } from '../src/utils.js';
@@ -85,13 +84,24 @@ function setAudiencesToAppNexusAdUnits(adUnits, audiences) {
  * @param {Array} audiences
  * @return {{}} a map from bidder code to ORTB2 config
  */
-export function getAudiencesAsBidderOrtb2(rtdConfig, audiences) {
+export function setAudiencesAsBidderOrtb2(rtdConfig, audiences) {
   const bidders = deepAccess(rtdConfig, 'params.bidders');
-  if (!bidders || bidders.length === 0) return {};
-  const agOrtb2 = {}
-  deepSetValue(agOrtb2, 'ortb2.user.ext.data.airgrid', audiences || []);
+  if (!bidders || bidders.length === 0 || !audiences || audiences.length === 0) return;
 
-  return Object.fromEntries(bidders.map(bidder => [bidder, agOrtb2]));
+  const keywords = audiences.map(
+    (audienceId) => `perid=${audienceId}`
+  ).join(',');
+
+  config.mergeBidderConfig({
+    bidders: bidders,
+    config: {
+      ortb2: {
+        site: {
+          keywords,
+        }
+      }
+    }
+  })
 }
 
 export function setAudiencesUsingAppNexusAuctionKeywords(audiences) {
@@ -131,7 +141,7 @@ export function passAudiencesToBidders(
   const audiences = getMatchedAudiencesFromStorage();
   if (audiences.length > 0) {
     setAudiencesUsingAppNexusAuctionKeywords(audiences);
-    mergeDeep(bidConfig?.ortb2Fragments?.bidder, getAudiencesAsBidderOrtb2(rtdConfig, audiences));
+    setAudiencesAsBidderOrtb2(rtdConfig, audiences)
     if (adUnits) {
       setAudiencesToAppNexusAdUnits(adUnits, audiences);
     }
diff --git a/test/spec/modules/airgridRtdProvider_spec.js b/test/spec/modules/airgridRtdProvider_spec.js
index 5b1df6f9d4c..c587ef1a133 100644
--- a/test/spec/modules/airgridRtdProvider_spec.js
+++ b/test/spec/modules/airgridRtdProvider_spec.js
@@ -110,12 +110,18 @@ describe('airgrid RTD Submodule', function () {
         .withArgs(agRTD.AG_AUDIENCE_IDS_KEY)
         .returns(JSON.stringify(MATCHED_AUDIENCES));
       const audiences = agRTD.getMatchedAudiencesFromStorage();
-      const bidderOrtb2 = agRTD.getAudiencesAsBidderOrtb2(RTD_CONFIG.dataProviders[0], audiences);
 
-      const bidders = RTD_CONFIG.dataProviders[0].params.bidders;
+      agRTD.setAudiencesAsBidderOrtb2(RTD_CONFIG.dataProviders[0], audiences);
+
+      const bidderConfig = config.getBidderConfig()
+      const bidders = RTD_CONFIG.dataProviders[0].params.bidders
+      const bidderOrtb2 = bidderConfig
+
       Object.keys(bidderOrtb2).forEach((bidder) => {
         if (bidders.indexOf(bidder) === -1) return;
-        expect(deepAccess(bidderOrtb2[bidder], 'ortb2.user.ext.data.airgrid')).to.eql(MATCHED_AUDIENCES);
+        MATCHED_AUDIENCES.forEach((audience) => {
+          expect(deepAccess(bidderOrtb2[bidder], 'ortb2.site.keywords')).to.contain(audience);
+        })
       });
     });