diff --git a/packages/metro-config/src/defaults/blacklist.js b/packages/metro-config/src/defaults/blacklist.js
index d694557a12..8bef0d5c33 100644
--- a/packages/metro-config/src/defaults/blacklist.js
+++ b/packages/metro-config/src/defaults/blacklist.js
@@ -13,7 +13,7 @@ var path = require('path');
 // Don't forget to everything listed here to `package.json`
 // modulePathIgnorePatterns.
 var sharedBlacklist = [
-  /node_modules[/\\]react[/\\]dist[/\\].*/,
+  /node_modules[\/\\]react[\/\\]dist[\/\\].*/,
 
   /website\/node_modules\/.*/,