diff --git a/modules/jixieBidAdapter.js b/modules/jixieBidAdapter.js
index 67895347e7..d482d038c3 100644
--- a/modules/jixieBidAdapter.js
+++ b/modules/jixieBidAdapter.js
@@ -217,6 +217,10 @@ export const spec = {
     if (eids1 && eids1.length) {
       eids = eids1;
     }
+
+    const siteKvs = deepAccess(bidderRequest, 'ortb2.site.ext.data.jixie');
+    const userKvs = deepAccess(bidderRequest, 'ortb2.user.ext.data.jixie');
+
     // we want to send this blob of info to our backend:
     const transformedParams = Object.assign({}, {
       // TODO: fix auctionId leak: https://github.com/prebid/Prebid.js/issues/9781
@@ -237,6 +241,12 @@ export const spec = {
       pbjsver: PREBID_VERSION,
       cfg: jxCfg
     }, ids);
+    if (siteKvs) {
+      transformedParams.siteKvs = siteKvs;
+    }
+    if (userKvs) {
+      transformedParams.userKvs = userKvs;
+    }
     return Object.assign({}, {
       method: 'POST',
       url: REQUESTS_URL,
diff --git a/test/spec/modules/jixieBidAdapter_spec.js b/test/spec/modules/jixieBidAdapter_spec.js
index fb904e4b12..1c02f60e18 100644
--- a/test/spec/modules/jixieBidAdapter_spec.js
+++ b/test/spec/modules/jixieBidAdapter_spec.js
@@ -91,7 +91,27 @@ describe('jixie Adapter', function () {
     const bidderRequest_ = {
       refererInfo: { referer: pageurl_ },
       auctionId: auctionId_,
-      timeout: timeout_
+      timeout: timeout_,
+      ortb2: {
+        site: {
+          ext: {
+            data: {
+              jixie: {
+                keyA: 'abcde'
+              }
+            }
+          }
+        },
+        user: {
+          ext: {
+            data: {
+              jixie: {
+                abc: 'def'
+              }
+            }
+          }
+        }
+      }
     };
     // to serve as the object that prebid will call jixie buildRequest with: (param1)
     const bidRequests_ = [
@@ -307,6 +327,8 @@ describe('jixie Adapter', function () {
       expect(payload).to.have.property('timeout', timeout_);
       expect(payload).to.have.property('currency', currency_);
       expect(payload).to.have.property('bids').that.deep.equals(refBids_);
+      expect(payload).to.have.property('siteKvs').that.deep.equals(bidderRequest_.ortb2.site.ext.data.jixie);
+      expect(payload).to.have.property('userKvs').that.deep.equals(bidderRequest_.ortb2.user.ext.data.jixie);
 
       // unwire interceptors
       getCookieStub.restore();
diff --git a/test/spec/modules/jixieIdSystem_spec.js b/test/spec/modules/jixieIdSystem_spec.js
index eb95b59b02..50c608fd3d 100644
--- a/test/spec/modules/jixieIdSystem_spec.js
+++ b/test/spec/modules/jixieIdSystem_spec.js
@@ -25,7 +25,6 @@ describe('JixieId  Submodule', () => {
   const EID_TYPE2_LSNAME = 'somesha2ls';
   const EID_TYPE1_SAMPLEVALUE = 'pppppppppp';
   const EID_TYPE2_SAMPLEVALUE = 'eeeeeeeeee';
-
   it('should have the correct module name declared', () => {
     expect(jixieIdSubmodule.name).to.equal('jixieId');
   });
@@ -41,7 +40,6 @@ describe('JixieId  Submodule', () => {
       });
     });
   });
-
   describe('getId()', () => {
     describe('getId', () => {
       context('when there is jixie_o in the window object (jx script on site)', () => {