diff --git a/packages/dd-trace/src/appsec/iast/taint-tracking/rewriter-esm.mjs b/packages/dd-trace/src/appsec/iast/taint-tracking/rewriter-esm.mjs
index 6923e7b587e..e9e59ec86a6 100644
--- a/packages/dd-trace/src/appsec/iast/taint-tracking/rewriter-esm.mjs
+++ b/packages/dd-trace/src/appsec/iast/taint-tracking/rewriter-esm.mjs
@@ -9,19 +9,16 @@ const ddTraceDir = path.join(currentUrl.pathname, '..', '..', '..', '..', '..',
 let idCounter = 1
 let initialized = false
 
-
-let port, entryPoint
+let port
 
 export async function initialize (data) {
   if (initialized) return Promise.reject(new Error('ALREADY INITIALIZED'))
   initialized = true
 
   port = data.port2
-  entryPoint = data.entryPoint
 }
 
-export async function load(url, context, nextLoad) {
-  console.log('load?', url)
+export async function load (url, context, nextLoad) {
   const result = await nextLoad(url, context)
 
   if (!port) return result
diff --git a/packages/dd-trace/src/appsec/iast/taint-tracking/rewriter.js b/packages/dd-trace/src/appsec/iast/taint-tracking/rewriter.js
index 60a7bf395ee..2ca2d77bcf4 100644
--- a/packages/dd-trace/src/appsec/iast/taint-tracking/rewriter.js
+++ b/packages/dd-trace/src/appsec/iast/taint-tracking/rewriter.js
@@ -2,7 +2,7 @@
 
 const Module = require('module')
 const { pathToFileURL } = require('url')
-const { MessageChannel } = require('worker_threads');
+const { MessageChannel } = require('worker_threads')
 const shimmer = require('../../../../../datadog-shimmer')
 const { isPrivateModule, isNotLibraryFile } = require('./filter')
 const { csiMethods } = require('./csi-methods')
@@ -17,6 +17,7 @@ const hardcodedSecretCh = dc.channel('datadog:secrets:result')
 let rewriter
 let getPrepareStackTrace
 let kSymbolPrepareStackTrace
+let esmRewriterEnabled = false
 
 let getRewriterOriginalPathAndLineFromSourceMap = function (path, line, column) {
   return { path, line, column }
@@ -146,8 +147,9 @@ function enableRewriter (telemetryVerbosity) {
 }
 
 function enableEsmRewriter () {
-  if (isMainThread && Module.register) {
-    const { port1, port2 } = new MessageChannel();
+  if (isMainThread && Module.register && !esmRewriterEnabled) {
+    esmRewriterEnabled = true
+    const { port1, port2 } = new MessageChannel()
     port1.on('message', (message) => {
       message.source = rewriteForESM(message.source, message.url)
       port1.postMessage(message)
@@ -162,7 +164,6 @@ function enableEsmRewriter () {
           transferList: [port2]
         })
       } catch (e) {
-        console.error('e.message', e.message)
         log.error('[ASM] Error enabling ESM Rewriter', e)
       }
     })