diff --git a/package.json b/package.json
index aaadc5051dbb556cb37c9d8f096ba761509be433..7355f6575b4d32ec9f803ab5e2452a106eb5687e 100644
--- a/package.json
+++ b/package.json
@@ -6,6 +6,7 @@
   "module": "src/index.js",
   "typings": "types/index.d.ts",
   "postCompile": true,
+  "sideEffects": false,
   "scripts": {
     "build": "node build/build.js",
     "dev": "node build/dev-server.js",