diff --git a/modules/improvedigitalBidAdapter.js b/modules/improvedigitalBidAdapter.js
index 33ba08e8fd2..a1eb685b6a0 100644
--- a/modules/improvedigitalBidAdapter.js
+++ b/modules/improvedigitalBidAdapter.js
@@ -172,6 +172,8 @@ export const CONVERTER = ortbConverter({
     }
     deepSetValue(imp, `${bidderParamsPath}.keyValues`, getBidIdParameter('keyValues', bidRequest.params) || undefined);
 
+    context.bidderRequest.bidLimit && deepSetValue(imp, 'ext.max_bids', context.bidderRequest.bidLimit);
+
     return imp;
   },
   request(buildRequest, imps, bidderRequest, context) {
diff --git a/test/spec/modules/improvedigitalBidAdapter_spec.js b/test/spec/modules/improvedigitalBidAdapter_spec.js
index 46e07bacbe4..24362d7861a 100644
--- a/test/spec/modules/improvedigitalBidAdapter_spec.js
+++ b/test/spec/modules/improvedigitalBidAdapter_spec.js
@@ -708,6 +708,28 @@ describe('Improve Digital Adapter Tests', function () {
       expect(payload.imp[0].ext.prebid.storedrequest.id).to.equal('123456');
     });
 
+    it('should add max_bids param in imp.ext objects when bidLimit is specified in the bidderRequest', function () {
+      const bidderRequestDeepClone = deepClone(bidderRequest);
+      bidderRequestDeepClone.bidLimit = 3;
+      const requests = spec.buildRequests([simpleBidRequest, instreamBidRequest], bidderRequestDeepClone);
+      // banner
+      let payload = JSON.parse(requests[0].data);
+      expect(payload.imp[0].ext.max_bids).to.equal(3);
+      // video
+      payload = JSON.parse(requests[1].data);
+      expect(payload.imp[0].ext.max_bids).to.equal(3);
+    });
+
+    it('should not add max_bids param in imp.ext objects when bidLimit is not specified in the bidderRequest', function () {
+      const requests = spec.buildRequests([simpleBidRequest, instreamBidRequest], bidderRequest);
+      // banner
+      let payload = JSON.parse(requests[0].data);
+      expect(payload.imp[0].ext.max_bids).to.not.exist;
+      // video
+      payload = JSON.parse(requests[1].data);
+      expect(payload.imp[0].ext.max_bids).to.not.exist;
+    });
+
     it('should set extend url when extend mode enabled in adunit params', function () {
       const bidRequest = deepClone(extendBidRequest);
       let request = spec.buildRequests([bidRequest], { bids: [bidRequest] })[0];