diff --git a/modules/permutiveRtdProvider.js b/modules/permutiveRtdProvider.js
index fec5895a2f2..0c44fba75a1 100644
--- a/modules/permutiveRtdProvider.js
+++ b/modules/permutiveRtdProvider.js
@@ -208,9 +208,6 @@ function updateOrtbConfig(bidder, currConfig, segmentIDs, sspSegmentIDs, transfo
 function setSegments (reqBidsConfigObj, moduleConfig, segmentData) {
   const adUnits = (reqBidsConfigObj && reqBidsConfigObj.adUnits) || getGlobal().adUnits
   const utils = { deepSetValue, deepAccess, isFn, mergeDeep }
-  const aliasMap = {
-    appnexusAst: 'appnexus'
-  }
 
   if (!adUnits) {
     return
@@ -219,9 +216,6 @@ function setSegments (reqBidsConfigObj, moduleConfig, segmentData) {
   adUnits.forEach(adUnit => {
     adUnit.bids.forEach(bid => {
       let { bidder } = bid
-      if (typeof aliasMap[bidder] !== 'undefined') {
-        bidder = aliasMap[bidder]
-      }
       const acEnabled = isAcEnabled(moduleConfig, bidder)
       const customFn = getCustomBidderFn(moduleConfig, bidder)
       const defaultFn = getDefaultBidderFn(bidder)