diff --git a/experimental/CHANGELOG.md b/experimental/CHANGELOG.md
index 8306297a22..63351faf14 100644
--- a/experimental/CHANGELOG.md
+++ b/experimental/CHANGELOG.md
@@ -9,6 +9,8 @@ All notable changes to experimental packages in this project will be documented
 
 ### :rocket: (Enhancement)
 
+* feat(instrumentation): re-export initialize function from import-in-the-middle [#5123](https://github.com/open-telemetry/opentelemetry-js/pull/5123)
+
 ### :bug: (Bug Fix)
 
 ### :books: (Refine Doc)
diff --git a/experimental/packages/opentelemetry-instrumentation/hook.mjs b/experimental/packages/opentelemetry-instrumentation/hook.mjs
index 7111b37699..55cff32b59 100644
--- a/experimental/packages/opentelemetry-instrumentation/hook.mjs
+++ b/experimental/packages/opentelemetry-instrumentation/hook.mjs
@@ -1,12 +1,11 @@
-/*!
- * Copyright 2021 Datadog, Inc.
+/*
  * Copyright The OpenTelemetry Authors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -20,9 +19,10 @@
 // This product includes software developed at Datadog (https://www.datadoghq.com/). Copyright 2021 Datadog, Inc.
 
 import {
+  initialize,
   load,
   resolve,
   getFormat,
   getSource,
 } from 'import-in-the-middle/hook.mjs';
-export { load, resolve, getFormat, getSource };
+export { initialize, load, resolve, getFormat, getSource };