diff --git a/package.json b/package.json
index 58672737..7cd98378 100644
--- a/package.json
+++ b/package.json
@@ -51,6 +51,7 @@
     "read-dir-files": "^0.1.1",
     "standard": "^17.0.0"
   },
+  "main": "./lib/index.js",
   "exports": {
     ".": "./lib/index.js",
     "./esm": "./lib/esm.mjs"