diff --git a/package.build.json b/package.build.json
index ed1d88e..eae9907 100644
--- a/package.build.json
+++ b/package.build.json
@@ -2,8 +2,8 @@
   "name": "readium-speech",
   "version": "1.0.0",
   "description": "Readium Speech is a TypeScript library for implementing a read aloud feature with Web technologies. It follows [best practices](https://github.com/HadrienGardeur/read-aloud-best-practices) gathered through interviews with members of the digital publishing industry.",
-  "main": "cjs/index.js",
-  "module": "mjs/index.js",
+  "main": "cjs/voices.js",
+  "module": "mjs/voices.js",
   "types": "types/voices.d.ts",
   "license": "BSD-3-Clause",
   "type": "module"