diff --git a/package.json b/package.json
index d2cb3d9..52df00f 100644
--- a/package.json
+++ b/package.json
@@ -20,6 +20,7 @@
     "js",
     "structure"
   ],
+  "sideEffects": false,
   "main": "lib/index.js",
   "files": [
     "lib"