diff --git a/package.json b/package.json
index f14ec79..3de1a05 100644
--- a/package.json
+++ b/package.json
@@ -19,6 +19,7 @@
   "devDependencies": {
     "webpack-dev-server": "^3.11.0"
   },
+  "module": "./lib/matestack/ui/bootstrap/index.js",
   "exports": {
     ".": "./lib/matestack/ui/bootstrap/index.js"
   }