diff --git a/test/e2e/app-dir/next-after-app/next.config.js b/test/e2e/app-dir/next-after-app/next.config.js
index e2befb32453d4..ced63c6922044 100644
--- a/test/e2e/app-dir/next-after-app/next.config.js
+++ b/test/e2e/app-dir/next-after-app/next.config.js
@@ -2,5 +2,6 @@
 module.exports = {
   experimental: {
     testProxy: true,
+    taint: true,
   },
 }