diff --git a/packages/intl-displaynames/package.json b/packages/intl-displaynames/package.json
index 3266345e4..daf93153a 100644
--- a/packages/intl-displaynames/package.json
+++ b/packages/intl-displaynames/package.json
@@ -22,6 +22,7 @@
     "dist",
     "lib",
     "polyfill.js",
+    "polyfill-locales.js",
     "src"
   ],
   "repository": {