diff --git a/modules/@angular/upgrade/package.json b/modules/@angular/upgrade/package.json
index ccd12ee05e..2b2515bc81 100644
--- a/modules/@angular/upgrade/package.json
+++ b/modules/@angular/upgrade/package.json
@@ -2,7 +2,7 @@
   "name": "@angular/upgrade",
   "version": "0.0.0-PLACEHOLDER",
   "description": "",
-  "main": "bundles/core.umd.js",
+  "main": "bundles/upgrade.umd.js",
   "module": "index.js",
   "typings": "index.d.ts",
   "author": "angular",