diff --git a/package.json b/package.json
index 21332eb..087d7c0 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
   "main": "src/index.js",
   "files": [
     "src/index.js",
+    "src/utils.js",
     "src/typedefs.js",
     "README.md",
     "package.json"