diff --git a/npm-react-core/package.json b/npm-react-core/package.json
index a43e9b0fad..effc04ef54 100644
--- a/npm-react-core/package.json
+++ b/npm-react-core/package.json
@@ -16,6 +16,7 @@
     "README.md",
     "addons.js",
     "react.js",
+    "ReactJSErrors.js",
     "lib/"
   ],
   "main": "react.js",