diff --git a/packager/react-packager/src/DependencyResolver/Module.js b/packager/react-packager/src/DependencyResolver/Module.js
index 745ab3fb089eb7..b34a2568dbefd2 100644
--- a/packager/react-packager/src/DependencyResolver/Module.js
+++ b/packager/react-packager/src/DependencyResolver/Module.js
@@ -56,7 +56,7 @@ class Module {
               return this.path;
             }
 
-            return path.join(name, path.relative(p.root, this.path));
+            return path.join(name, path.relative(p.root, this.path)).replace(/\\/g, '/');
           });
       })
     );