diff --git a/package.json b/package.json
index 195c640..64ac8cb 100644
--- a/package.json
+++ b/package.json
@@ -48,6 +48,7 @@
   "module": "dist/flexsearch.bundle.module.min.js",
   "browser": {
     "flexsearch": "./dist/flexsearch.bundle.module.min.js",
+    "flexsearch/esm": "./dist/flexsearch.bundle.module.min.js",
     "flexsearch/debug": "./dist/flexsearch.bundle.module.debug.js",
     "dist/flexsearch.bundle.min.js": "./dist/flexsearch.bundle.min.js",
     "dist/flexsearch.bundle.module.min.js": "./dist/flexsearch.bundle.module.min.js",