diff --git a/npm_publish/index.js b/npm_publish/index.js
index 678e7292..2addb97a 100644
--- a/npm_publish/index.js
+++ b/npm_publish/index.js
@@ -10,8 +10,6 @@ const ARCH_MAPPING = {
   arm64: 'arm64',
 };
 const PLATFORM_MACOS = 'darwin';
-// The "fat" macOS binary includes code for both x64 and arm64 architectures
-const GO_ARCH_FAT = 'fat';
 // Mapping between Node's `process.platform` to Golang's
 const PLATFORM_MAPPING = {
   [PLATFORM_MACOS]: PLATFORM_MACOS,
@@ -24,7 +22,7 @@ let fullPath = null;
 /**
  * @return {Promise<string>}
  */
-export async function findGoIosBinary() {
+async function findGoIosBinary() {
   if (fullPath) {
     // return the previously cached value
     return fullPath;
@@ -33,7 +31,7 @@ export async function findGoIosBinary() {
   const binaryName = `ios${process.platform === 'win32' ? '.exe' : ''}`;
   const binaryRoot = path.join(__dirname, 'dist');
   const goPlatform = PLATFORM_MAPPING[process.platform];
-  const goArch = goPlatform === PLATFORM_MACOS ? GO_ARCH_FAT : ARCH_MAPPING[process.arch];
+  const goArch = ARCH_MAPPING[process.arch];
   if (goPlatform && goArch) {
     const sysFolderName = `go-ios-${goPlatform}-${goArch}_${goPlatform}_${goArch}`;
     fullPath = path.join(binaryRoot, sysFolderName, binaryName);
@@ -51,6 +49,8 @@ export async function findGoIosBinary() {
   return fullPath;
 }
 
+exports.findGoIosBinary = findGoIosBinary;
+
 /**
  * @returns {Promise<void>}
  */
diff --git a/npm_publish/package.json b/npm_publish/package.json
index 998e6267..b146ba12 100644
--- a/npm_publish/package.json
+++ b/npm_publish/package.json
@@ -1,6 +1,7 @@
 {
     "name": "go-ios",
     "version": "local-build",
+    "type":"commonjs",
     "description": "Provide a stable and production ready opensource solution to automate iOS device on Linux, Windows and Mac OS X.",
     "main": "index.js",
     "scripts": {