diff --git a/modules/zeta_global_sspBidAdapter.js b/modules/zeta_global_sspBidAdapter.js
index 1fdd1eff179..114bb86b4d6 100644
--- a/modules/zeta_global_sspBidAdapter.js
+++ b/modules/zeta_global_sspBidAdapter.js
@@ -99,7 +99,7 @@ export const spec = {
       user: params.user ? params.user : {},
       app: params.app ? params.app : {},
       ext: {
-        tags: {...params.tags, shortname: params.shortname},
+        tags: params.tags ? params.tags : {},
         sid: params.sid ? params.sid : undefined
       }
     };
@@ -126,9 +126,10 @@ export const spec = {
     }
 
     provideEids(request, payload);
+    const url = params.shortname ? ENDPOINT_URL.concat('?shortname=', params.shortname) : ENDPOINT_URL;
     return {
       method: 'POST',
-      url: ENDPOINT_URL,
+      url: url,
       data: JSON.stringify(payload),
     };
   },
diff --git a/test/spec/modules/zeta_global_sspBidAdapter_spec.js b/test/spec/modules/zeta_global_sspBidAdapter_spec.js
index f6faa67f6b8..d439da8e711 100644
--- a/test/spec/modules/zeta_global_sspBidAdapter_spec.js
+++ b/test/spec/modules/zeta_global_sspBidAdapter_spec.js
@@ -270,16 +270,18 @@ describe('Zeta Ssp Bid Adapter', function () {
   it('Test required params in banner request', function () {
     const request = spec.buildRequests(bannerRequest, bannerRequest[0]);
     const payload = JSON.parse(request.data);
+    expect(request.url).to.eql('https://ssp.disqus.com/bid?shortname=test_shortname');
     expect(payload.ext.sid).to.eql('publisherId');
     expect(payload.ext.tags.someTag).to.eql(444);
-    expect(payload.ext.tags.shortname).to.eql('test_shortname');
+    expect(payload.ext.tags.shortname).to.be.undefined;
   });
 
   it('Test required params in video request', function () {
     const request = spec.buildRequests(videoRequest, videoRequest[0]);
     const payload = JSON.parse(request.data);
+    expect(request.url).to.eql('https://ssp.disqus.com/bid?shortname=test_shortname');
     expect(payload.ext.sid).to.eql('publisherId');
     expect(payload.ext.tags.someTag).to.eql(444);
-    expect(payload.ext.tags.shortname).to.eql('test_shortname');
+    expect(payload.ext.tags.shortname).to.be.undefined;
   });
 });