diff --git a/errors/middleware-upgrade-guide.md b/errors/middleware-upgrade-guide.md
index ea3968fd63921..d2b3d576a326e 100644
--- a/errors/middleware-upgrade-guide.md
+++ b/errors/middleware-upgrade-guide.md
@@ -218,6 +218,8 @@ export function middleware() {
 
   // clear all cookies means mark all of them as expired
   response.cookies.clear()
+
+  return response
 }
 ```