diff --git a/lib/build/stub-module.js b/lib/build/stub-module.js
index 57ef46c5c..698019aff 100644
--- a/lib/build/stub-module.js
+++ b/lib/build/stub-module.js
@@ -27,7 +27,7 @@ const UNAVAIABLE_CORE_MODULES = [
   'tls'
 ];
 
-const EMPTY_MODULE = 'define(function(){});';
+const EMPTY_MODULE = 'define(function(){return {};});';
 
 function resolvePath(packageName, root) {
   return path.relative(root, Utils.resolvePackagePath(packageName)).replace(/\\/g, '/');
diff --git a/spec/lib/build/stub-module.spec.js b/spec/lib/build/stub-module.spec.js
index cc9ee0c2d..6dba460f0 100644
--- a/spec/lib/build/stub-module.spec.js
+++ b/spec/lib/build/stub-module.spec.js
@@ -48,10 +48,10 @@ describe('StubCoreNodejsModule', () => {
   });
 
   it('stubs empty module for some core module', () => {
-    expect(stubModule('dns', 'src')).toBe('define(function(){});');
+    expect(stubModule('dns', 'src')).toBe('define(function(){return {};});');
   });
 
   it('stubs empty module for __ignore__', () => {
-    expect(stubModule('__ignore__', 'src')).toBe('define(function(){});');
+    expect(stubModule('__ignore__', 'src')).toBe('define(function(){return {};});');
   });
 });