diff --git a/src/adapters/prebidServer.js b/src/adapters/prebidServer.js
index dc83a04019b..e229da9b33f 100644
--- a/src/adapters/prebidServer.js
+++ b/src/adapters/prebidServer.js
@@ -154,6 +154,9 @@ function PrebidServer() {
             bidObject.ad = bidObj.adm;
             bidObject.width = bidObj.width;
             bidObject.height = bidObj.height;
+            if (bidObj.deal_id) {
+              bidObject.dealId = bidObj.deal_id;
+            }
 
             bidmanager.addBidResponse(bidObj.code, bidObject);
           });
diff --git a/test/spec/adapters/prebidServer_spec.js b/test/spec/adapters/prebidServer_spec.js
index 0d047133c97..abc3525a8f4 100644
--- a/test/spec/adapters/prebidServer_spec.js
+++ b/test/spec/adapters/prebidServer_spec.js
@@ -66,7 +66,8 @@ const RESPONSE = {
       'price': 0.5,
       'adm': '<script type="application/javascript" src="http://nym1-ib.adnxs.com/ab?e=wqT_3QL_Baj_AgAAAwDWAAUBCO-s38cFEJG-p6iRgOfvdhivtLWVpomhsWUgASotCQAAAQII4D8RAQc0AADgPxkAAACA61HgPyEREgApEQmgMPLm_AQ4vgdAvgdIAlDWy5MOWOGASGAAaJFAeP3PBIABAYoBA1VTRJIFBvBSmAGsAqAB-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_ICEAoFQ1BfSUQSBzg1MTM1OTSAAwGIAwGQAwCYAxSgAwGqAwDAA6wCyAMA2APjBuADAOgDAPgDA4AEAJIECS9vcGVucnRiMpgEAKIECzEwLjI0NC4wLjIyqAQAsgQKCAAQABgAIAAwALgEAMAEAMgEANIEDDEwLjMuMTM4LjE0ONoEAggB4AQA8ARBXyCIBQGYBQCgBf8RAZwBqgUkNDM3ZmJiZjUtMzNmNS00ODdhLThlMTYtYTcxMTI5MDNjZmU1&s=b52bf8a6265a78a5969444bc846cc6d0f9f3b489&test=1&referrer=www.nytimes.com&pp=${AUCTION_PRICE}&"></script>',
       'width': 300,
-      'height': 250
+      'height': 250,
+      'deal_id': 'test-dealid'
     }
   ]
 };
@@ -218,5 +219,15 @@ describe('S2S Adapter', () => {
       const response = bidmanager.addBidResponse.firstCall.args[1];
       expect(response).to.have.property('statusMessage', 'Bid returned empty or error response');
     });
+
+    it('should have dealId in bidObject', () => {
+      server.respondWith(JSON.stringify(RESPONSE));
+
+      adapter.setConfig(CONFIG);
+      adapter.callBids(REQUEST);
+      server.respond();
+      const response = bidmanager.addBidResponse.firstCall.args[1];
+      expect(response).to.have.property('dealId', 'test-dealid');
+    });
   });
 });