diff --git a/lib/worker.js b/lib/worker.js
index d050b4b..2b25fad 100644
--- a/lib/worker.js
+++ b/lib/worker.js
@@ -34,7 +34,7 @@ async function start () {
     // The error codes may change based on the node.js version (ENOTDIR > 12, ERR_MODULE_NOT_FOUND <= 12 )
     if ((error.code === 'ENOTDIR' || error.code === 'ERR_MODULE_NOT_FOUND') &&
      filename.startsWith('file://')) {
-      worker = realRequire(decodeURIComponent(filename.replace('file://', '')))
+      worker = realRequire(decodeURIComponent(filename.replace(process.platform === 'win32' ? 'file:///' : 'file://', '')))
     } else if (error.code === undefined || error.code === 'ERR_VM_DYNAMIC_IMPORT_CALLBACK_MISSING') {
       // When bundled with pkg, an undefined error is thrown when called with realImport
       // When bundled with pkg and using node v20, an ERR_VM_DYNAMIC_IMPORT_CALLBACK_MISSING error is thrown when called with realImport
diff --git a/test/pkg/.gitignore b/test/pkg/.gitignore
new file mode 100644
index 0000000..2b70cf7
--- /dev/null
+++ b/test/pkg/.gitignore
@@ -0,0 +1 @@
+/index-*
diff --git a/test/pkg/index.js b/test/pkg/index.js
index 8d7fd47..1cfcddb 100644
--- a/test/pkg/index.js
+++ b/test/pkg/index.js
@@ -21,17 +21,39 @@ process.on('uncaughtException', (error) => {
   process.exit(1)
 })
 
-const stream = new ThreadStream({
-  filename: join(__dirname, '..', 'to-file.js'),
-  workerData: { dest },
-  sync: true
+const stream1Promise = new Promise((resolve) => {
+  const stream = new ThreadStream({
+    filename: join(__dirname, '..', 'to-file.js'),
+    workerData: { dest },
+    sync: true
+  })
+
+  stream.worker.removeAllListeners('message')
+  stream.worker.once('message', (message) => {
+    assert.strictEqual(message.code, 'CUSTOM-WORKER-CALLED')
+    resolve()
+  })
+
+  stream.end()
 })
 
-stream.worker.removeAllListeners('message')
-stream.worker.once('message', (message) => {
-  assert.strictEqual(message.code, 'CUSTOM-WORKER-CALLED')
+const stream2Promise = new Promise((resolve) => {
+  const stream = new ThreadStream({
+    filename: join(__dirname, '..', 'to-file-worker.js'),
+    workerData: { dest },
+    sync: true
+  })
+
+  stream.worker.removeAllListeners('message')
+  stream.worker.once('message', (message) => {
+    assert.strictEqual(message.code, 'CUSTOM-WORKER-CALLED')
+    resolve()
+  })
+
+  stream.end()
+})
+
+Promise.all([stream1Promise, stream2Promise]).then(() => {
   console.log('pkg test passed')
   process.exit(0)
 })
-
-stream.end()
diff --git a/test/pkg/pkg.config.json b/test/pkg/pkg.config.json
index 90d73b6..065140b 100644
--- a/test/pkg/pkg.config.json
+++ b/test/pkg/pkg.config.json
@@ -2,7 +2,8 @@
     "pkg": {
         "assets": [
             "../custom-worker.js",
-            "../to-file.js"
+            "../to-file.js",
+            "../to-file-worker.js"
         ],
         "targets": [
             "node20",
@@ -11,4 +12,4 @@
         ],
         "outputPath": "test/pkg"
     }
-}
\ No newline at end of file
+}
diff --git a/test/to-file-worker.js b/test/to-file-worker.js
new file mode 100644
index 0000000..c0efd6b
--- /dev/null
+++ b/test/to-file-worker.js
@@ -0,0 +1,14 @@
+'use strict'
+
+const { join } = require('path')
+const ThreadStream = require('../..')
+
+async function run (opts) {
+  return new ThreadStream({
+    filename: join(__dirname, '..', 'to-file.js'),
+    workerData: opts,
+    sync: true
+  })
+}
+
+module.exports = run