diff --git a/modules/quantcastBidAdapter.js b/modules/quantcastBidAdapter.js
index cd513111870..e059bfdb4e4 100644
--- a/modules/quantcastBidAdapter.js
+++ b/modules/quantcastBidAdapter.js
@@ -123,7 +123,7 @@ export const spec = {
    *
    */
   interpretResponse(serverResponse) {
-    const response = serverResponse;
+    const response = serverResponse['body'];
 
     if (
       response === undefined ||
diff --git a/test/spec/modules/quantcastBidAdapter_spec.js b/test/spec/modules/quantcastBidAdapter_spec.js
index bb10e0682da..c38a0b77334 100644
--- a/test/spec/modules/quantcastBidAdapter_spec.js
+++ b/test/spec/modules/quantcastBidAdapter_spec.js
@@ -136,7 +136,7 @@ describe('Quantcast adapter', () => {
 
   describe('`interpretResponse`', () => {
     // The sample response is from https://wiki.corp.qc/display/adinf/QCX
-    const response = {
+    const body = {
       bidderCode: 'qcx', // Renaming it to use CamelCase since that is what is used in the Prebid.js variable name
       requestId: 'erlangcluster@qa-rtb002.us-ec.adtech.com-11417780270886458', // Added this field. This is not used now but could be useful in troubleshooting later on. Specially for sites using iFrames
       bids: [
@@ -152,6 +152,11 @@ describe('Quantcast adapter', () => {
       ]
     };
 
+    const response = {
+      body,
+      headers: {}
+    };
+
     it('should return an empty array if `serverResponse` is `undefined`', () => {
       const interpretedResponse = qcSpec.interpretResponse();
 
@@ -185,11 +190,15 @@ describe('Quantcast adapter', () => {
     });
 
     it('handles no bid response', () => {
-      const response = {
+      const body = {
         bidderCode: 'qcx', // Renaming it to use CamelCase since that is what is used in the Prebid.js variable name
         requestId: 'erlangcluster@qa-rtb002.us-ec.adtech.com-11417780270886458', // Added this field. This is not used now but could be useful in troubleshooting later on. Specially for sites using iFrames
         bids: []
       };
+      const response = {
+        body,
+        headers: {}
+      };
       const expectedResponse = [];
       const interpretedResponse = qcSpec.interpretResponse(response);