diff --git a/package.json b/package.json
index 26311a3..505e3c6 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
   },
   "files": [
     "lib",
-    "ExposeRuntimeCssAssetsPlugin.cjs"
+    "ExposeRuntimeCssAssetsPlugin.js"
   ],
   "repository": {
     "type": "git",