diff --git a/packages/nuxt/src/core/nitro.ts b/packages/nuxt/src/core/nitro.ts
index 772590c7cc..4ea642f235 100644
--- a/packages/nuxt/src/core/nitro.ts
+++ b/packages/nuxt/src/core/nitro.ts
@@ -213,7 +213,8 @@ export async function initNitro (nuxt: Nuxt & { _nitro?: Nitro }) {
   // Add app manifest handler and prerender configuration
   if (nuxt.options.experimental.appManifest) {
     // @ts-expect-error untyped nuxt property
-    const buildId = nuxt.options.appConfig.nuxt!.buildId ||= randomUUID()
+    const buildId = nuxt.options.appConfig.nuxt!.buildId ||=
+      (nuxt.options.test ? 'test' : nuxt.options.dev ? 'dev' : randomUUID())
     const buildTimestamp = Date.now()
 
     const manifestPrefix = joinURL(nuxt.options.app.buildAssetsDir, 'builds')
diff --git a/vitest.nuxt.config.ts b/vitest.nuxt.config.ts
index b6eb084841..56cf31d98c 100644
--- a/vitest.nuxt.config.ts
+++ b/vitest.nuxt.config.ts
@@ -7,17 +7,6 @@ export default defineVitestConfig({
   },
   test: {
     dir: './test/nuxt',
-    environment: 'nuxt',
-    environmentOptions: {
-      nuxt: {
-        overrides: {
-          appConfig: {
-            nuxt: {
-              buildId: 'test'
-            }
-          }
-        }
-      }
-    }
+    environment: 'nuxt'
   }
 })