diff --git a/modules/onetagBidAdapter.js b/modules/onetagBidAdapter.js
index 724a53a3095..801bb747e34 100644
--- a/modules/onetagBidAdapter.js
+++ b/modules/onetagBidAdapter.js
@@ -70,6 +70,9 @@ function buildRequests(validBidRequests, bidderRequest) {
   if (bidderRequest && bidderRequest.uspConsent) {
     payload.usPrivacy = bidderRequest.uspConsent;
   }
+  if (bidderRequest && bidderRequest.ortb2) {
+    payload.ortb2 = bidderRequest.ortb2;
+  }
   if (validBidRequests && validBidRequests.length !== 0 && validBidRequests[0].userIdAsEids) {
     payload.userId = validBidRequests[0].userIdAsEids;
   }
diff --git a/test/spec/modules/onetagBidAdapter_spec.js b/test/spec/modules/onetagBidAdapter_spec.js
index 6c9ba05bacd..df6456db82e 100644
--- a/test/spec/modules/onetagBidAdapter_spec.js
+++ b/test/spec/modules/onetagBidAdapter_spec.js
@@ -312,6 +312,75 @@ describe('onetag', function () {
       expect(payload.usPrivacy).to.exist;
       expect(payload.usPrivacy).to.exist.and.to.equal(consentString);
     });
+    it('Should send FPD (ortb2 field)', function () {
+      const firtPartyData = {
+        // this is where the contextual data is placed
+        site: {
+          name: 'example',
+          domain: 'page.example.com',
+          // OpenRTB 2.5 spec / Content Taxonomy
+          cat: ['IAB2'],
+          sectioncat: ['IAB2-2'],
+          pagecat: ['IAB2-2'],
+          page: 'https://page.example.com/here.html',
+          ref: 'https://ref.example.com',
+          keywords: 'power tools, drills',
+          search: 'drill',
+          content: {
+            userrating: '4',
+            data: [{
+              name: 'www.dataprovider1.com', // who resolved the segments
+              ext: {
+                segtax: 7, // taxonomy used to encode the segments
+                cids: ['iris_c73g5jq96mwso4d8']
+              },
+              // the bare minimum are the IDs. These IDs are the ones from the new IAB Content Taxonomy v3
+              segment: [ { id: '687' }, { id: '123' } ]
+            }]
+          },
+          ext: {
+            data: { // fields that aren't part of openrtb 2.6
+              pageType: 'article',
+              category: 'repair'
+            }
+          }
+        },
+        // this is where the user data is placed
+        user: {
+          keywords: 'a,b',
+          data: [{
+            name: 'dataprovider.com',
+            ext: {
+              segtax: 4
+            },
+            segment: [{
+              id: '1'
+            }]
+          }],
+          ext: {
+            data: {
+              registered: true,
+              interests: ['cars']
+            }
+          }
+        },
+        regs: {
+          gpp: 'abc1234',
+          gpp_sid: [7]
+        }
+      };
+      let bidderRequest = {
+        'bidderCode': 'onetag',
+        'auctionId': '1d1a030790a475',
+        'bidderRequestId': '22edbae2733bf6',
+        'timeout': 3000,
+        'ortb2': firtPartyData
+      }
+      let serverRequest = spec.buildRequests([bannerBid], bidderRequest);
+      const payload = JSON.parse(serverRequest.data);
+      expect(payload.ortb2).to.exist;
+      expect(payload.ortb2).to.exist.and.to.deep.equal(firtPartyData);
+    });
   });
   describe('interpretResponse', function () {
     const request = getBannerVideoRequest();