diff --git a/modules/sonobiBidAdapter.js b/modules/sonobiBidAdapter.js
index b65bb19b5a8..2edcdca1a51 100644
--- a/modules/sonobiBidAdapter.js
+++ b/modules/sonobiBidAdapter.js
@@ -1,5 +1,5 @@
 import { registerBidder } from '../src/adapters/bidderFactory.js';
-import { parseSizesInput, logError, generateUUID, isEmpty, deepAccess, logWarn, logMessage, deepClone, getGptSlotInfoForAdUnitCode } from '../src/utils.js';
+import { parseSizesInput, logError, generateUUID, isEmpty, deepAccess, logWarn, logMessage, deepClone, getGptSlotInfoForAdUnitCode, isFn, isPlainObject } from '../src/utils.js';
 import { BANNER, VIDEO } from '../src/mediaTypes.js';
 import { config } from '../src/config.js';
 import { Renderer } from '../src/Renderer.js';
@@ -303,8 +303,10 @@ function _validateSlot (bid) {
 }
 
 function _validateFloor (bid) {
-  if (bid.params.floor) {
-    return '';
+  const floor = getBidFloor(bid);
+
+  if (floor) {
+    return `|f=${floor}`;
   }
   return '';
 }
@@ -407,4 +409,21 @@ function _iframeAllowed() {
   return userSync.canBidderRegisterSync('iframe', BIDDER_CODE);
 }
 
+function getBidFloor(bid) {
+  if (!isFn(bid.getFloor)) {
+    return (bid.params.floor) ? bid.params.floor : null;
+  }
+
+  let floor = bid.getFloor({
+    currency: 'USD',
+    mediaType: '*',
+    size: '*'
+  });
+
+  if (isPlainObject(floor) && !isNaN(floor.floor) && floor.currency === 'USD') {
+    return floor.floor;
+  }
+  return '';
+}
+
 registerBidder(spec);
diff --git a/test/spec/modules/sonobiBidAdapter_spec.js b/test/spec/modules/sonobiBidAdapter_spec.js
index c1892a11e1a..8eee973794a 100644
--- a/test/spec/modules/sonobiBidAdapter_spec.js
+++ b/test/spec/modules/sonobiBidAdapter_spec.js
@@ -293,6 +293,12 @@ describe('SonobiBidAdapter', function () {
       'adUnitCode': 'adunit-code-3',
       'sizes': [[120, 600], [300, 600], [160, 600]],
       'bidId': '30b31c1838de1d',
+      'getFloor': ({currency, mediaType, size}) => {
+        return {
+          currency: 'USD',
+          floor: 0.42
+        }
+      }
     },
     {
       'bidder': 'sonobi',
@@ -307,8 +313,8 @@ describe('SonobiBidAdapter', function () {
     }];
 
     let keyMakerData = {
-      '30b31c1838de1f': '1a2b3c4d5e6f1a2b3c4d|300x250,300x600|gpid=/123123/gpt_publisher/adunit-code-1',
-      '30b31c1838de1d': '1a2b3c4d5e6f1a2b3c4e|300x250,300x600|gpid=/123123/gpt_publisher/adunit-code-3',
+      '30b31c1838de1f': '1a2b3c4d5e6f1a2b3c4d|300x250,300x600|f=1.25|gpid=/123123/gpt_publisher/adunit-code-1',
+      '30b31c1838de1d': '1a2b3c4d5e6f1a2b3c4e|300x250,300x600|f=0.42|gpid=/123123/gpt_publisher/adunit-code-3',
       '/7780971/sparks_prebid_LB|30b31c1838de1e': '300x250,300x600|gpid=/7780971/sparks_prebid_LB',
     };