diff --git a/package.json b/package.json
index dd782c4..4f44027 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "license": "MIT",
   "private": false,
   "version": "2.0.0",
-  "main": "src/SignedSource",
+  "main": "./src/SignedSource.js",
   "sideEffects": false,
   "dependencies": {
     "@babel/runtime": "^7.14.0"