diff --git a/package.json b/package.json
index f53bf94..ee3b9d3 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,7 @@
   "type": "module",
   "jsdelivr": "dist/chartjs-adapter-luxon.umd.min.js",
   "unpkg": "dist/chartjs-adapter-luxon.umd.min.js",
+  "main": "dist/chartjs-adapter-luxon.esm.js",
   "exports": {
     ".": "./dist/chartjs-adapter-luxon.esm.js"
   },