diff --git a/modules/gridBidAdapter.js b/modules/gridBidAdapter.js
index edbf5ed08bd..ac9a7d30429 100644
--- a/modules/gridBidAdapter.js
+++ b/modules/gridBidAdapter.js
@@ -81,7 +81,9 @@ export const spec = {
     const payload = {
       auids: auids.join(','),
       sizes: utils.getKeys(sizeMap).join(','),
-      r: reqId
+      r: reqId,
+      wrapperType: 'Prebid_js',
+      wrapperVersion: '$prebid.version$'
     };
 
     if (bidderRequest) {
diff --git a/test/spec/modules/gridBidAdapter_spec.js b/test/spec/modules/gridBidAdapter_spec.js
index a191d2211f5..36aaddb8b42 100644
--- a/test/spec/modules/gridBidAdapter_spec.js
+++ b/test/spec/modules/gridBidAdapter_spec.js
@@ -93,9 +93,11 @@ describe('TheMediaGrid Adapter', function () {
       expect(payload).to.have.property('auids', '1');
       expect(payload).to.have.property('sizes', '300x250,300x600');
       expect(payload).to.have.property('r', '22edbae2733bf6');
+      expect(payload).to.have.property('wrapperType', 'Prebid_js');
+      expect(payload).to.have.property('wrapperVersion', '$prebid.version$');
     });
 
-    it('auids must not be duplicated', function () {
+    it('sizes must not be duplicated', function () {
       const request = spec.buildRequests(bidRequests, bidderRequest);
       expect(request.data).to.be.an('string');
       const payload = parseRequest(request.data);