diff --git a/test/js/samples/reactive-class-optimized/store.js b/test/js/samples/reactive-class-optimized/store.js
index 10d34a1dd7..bd91f0ece3 100644
--- a/test/js/samples/reactive-class-optimized/store.js
+++ b/test/js/samples/reactive-class-optimized/store.js
@@ -1,4 +1,4 @@
 import { writable } from '../../../../store';
 
 export const reactiveStoreVal = writable(0);
-export let unreactiveExport = true;
+export const unreactiveExport = true;