diff --git a/src/index.js b/src/index.js
index 472e6cc..de62076 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,5 +1,5 @@
 function a() {
-    console.log('a', eval(window.data));
+    console.log('a', eval('12'));
 }
 function b() {
     console.log('a', eval(window.data));