diff --git a/package.json b/package.json
index cd893d1fa..a52208af4 100644
--- a/package.json
+++ b/package.json
@@ -167,6 +167,7 @@
     "semver": "^5.0.3",
     "source-map": "^0.4.4",
     "stacktrace-parser": "^0.1.3",
+    "temp": "0.8.3",
     "uglify-js": "^2.4.24",
     "underscore": "^1.8.3",
     "wordwrap": "^1.0.0",
@@ -181,7 +182,6 @@
     "babel-eslint": "4.1.4",
     "eslint": "1.3.1",
     "eslint-plugin-react": "3.3.1",
-    "portfinder": "0.4.0",
-    "temp": "0.8.3"
+    "portfinder": "0.4.0"
   }
 }
diff --git a/packager/react-packager/src/JSTransformer/__tests__/Transformer-test.js b/packager/react-packager/src/JSTransformer/__tests__/Transformer-test.js
index 83275f142..7e1297689 100644
--- a/packager/react-packager/src/JSTransformer/__tests__/Transformer-test.js
+++ b/packager/react-packager/src/JSTransformer/__tests__/Transformer-test.js
@@ -13,6 +13,7 @@ jest
   .dontMock('../');
 
 jest.mock('fs');
+jest.setMock('temp', {path: () => '/arbitrary/path'});
 
 var Cache = require('../../DependencyResolver/Cache');
 var Transformer = require('../');
diff --git a/packager/react-packager/src/JSTransformer/index.js b/packager/react-packager/src/JSTransformer/index.js
index 2688e14cf..6cba12e51 100644
--- a/packager/react-packager/src/JSTransformer/index.js
+++ b/packager/react-packager/src/JSTransformer/index.js
@@ -12,6 +12,7 @@ const ModuleTransport = require('../lib/ModuleTransport');
 const Promise = require('promise');
 const declareOpts = require('../lib/declareOpts');
 const fs = require('fs');
+const temp = require('temp');
 const util = require('util');
 const workerFarm = require('worker-farm');
 const debug = require('debug')('ReactNativePackager:JStransformer');
@@ -63,13 +64,22 @@ class Transformer {
     this._transformModulePath = opts.transformModulePath;
 
     if (opts.transformModulePath != null) {
+      this._workerWrapperPath = temp.path();
+      fs.writeFileSync(
+        this._workerWrapperPath,
+        `
+        module.exports = require(${JSON.stringify(require.resolve('./worker'))});
+        require(${JSON.stringify(String(opts.transformModulePath))});
+        `
+      );
+
       this._workers = workerFarm({
         autoStart: true,
         maxConcurrentCallsPerWorker: 1,
         maxCallsPerWorker: MAX_CALLS_PER_WORKER,
         maxCallTime: opts.transformTimeoutInterval,
         maxRetries: MAX_RETRIES,
-      }, require.resolve('./worker'));
+      }, this._workerWrapperPath);
 
       this._transform = Promise.denodeify(this._workers);
     }
@@ -77,6 +87,9 @@ class Transformer {
 
   kill() {
     this._workers && workerFarm.end(this._workers);
+    if (typeof this._workerWrapperPath === 'string') {
+      fs.unlink(this._workerWrapperPath, () => {}); // we don't care about potential errors here
+    }
   }
 
   invalidateFile(filePath) {