diff --git a/packages/nitro/src/rollup/plugins/middleware.ts b/packages/nitro/src/rollup/plugins/middleware.ts
index b9048c0b46..9bc1dd26de 100644
--- a/packages/nitro/src/rollup/plugins/middleware.ts
+++ b/packages/nitro/src/rollup/plugins/middleware.ts
@@ -16,7 +16,7 @@ export function middleware (getMiddleware: () => ServerMiddleware[]) {
       load: () => {
         const middleware = getMiddleware()
 
-        if (!stdenv.test) {
+        if (stdenv.debug) {
           const dumped = dumpMiddleware(middleware)
           if (dumped !== lastDump) {
             lastDump = dumped