diff --git a/playground/backend-integration/__test__/__snapshots__/test.spec.ts.snap b/playground/backend-integration/__test__/__snapshots__/test.spec.ts.snap
index ebfc14c8..01f157f6 100644
--- a/playground/backend-integration/__test__/__snapshots__/test.spec.ts.snap
+++ b/playground/backend-integration/__test__/__snapshots__/test.spec.ts.snap
@@ -1,11 +1,11 @@
 // Vitest Snapshot v1
 
-exports[`backend-integration > serve > get initial error 1`] = `"[{\\"checkerId\\":\\"TypeScript\\",\\"frame\\":\\"    4 |/n    5 | function App() {/n  > 6 |   const [count, setCount] = useState<string>(0)/n      |                                              ^/n    7 |/n    8 |   return (/n    9 |     <div className=/\\"App/\\">\\",\\"id\\":\\"<PROJECT_ROOT>/playground/backend-integration/src/App.tsx\\",\\"level\\":1,\\"loc\\":{\\"column\\":46,\\"file\\":\\"<PROJECT_ROOT>/playground/backend-integration/src/App.tsx\\",\\"line\\":6},\\"message\\":\\"Argument of type 'number' is not assignable to parameter of type 'string | (() => string)'.\\",\\"stack\\":\\"\\"}]"`;
+exports[`backend-integration > serve > get initial error 1`] = `"[{\\"checkerId\\":\\"TypeScript\\",\\"frame\\":\\"    4 |/n    5 | function App() {/n  > 6 |   const [count, setCount] = useState<string>(0)/n      |                                              ^/n    7 |/n    8 |   return (/n    9 |     <div className=/\\"App/\\">\\",\\"id\\":\\"<PROJECT_ROOT>/playground-temp/backend-integration/src/App.tsx\\",\\"level\\":1,\\"loc\\":{\\"column\\":46,\\"file\\":\\"<PROJECT_ROOT>/playground-temp/backend-integration/src/App.tsx\\",\\"line\\":6},\\"message\\":\\"Argument of type 'number' is not assignable to parameter of type 'string | (() => string)'.\\",\\"stack\\":\\"\\"}]"`;
 
 exports[`backend-integration > serve > get initial error 2`] = `
 "
  ERROR(TypeScript)  Argument of type 'number' is not assignable to parameter of type 'string | (() => string)'.
- FILE  <PROJECT_ROOT>/playground/backend-integration/src/App.tsx:6:46
+ FILE  <PROJECT_ROOT>/playground-temp/backend-integration/src/App.tsx:6:46
 
     4 |
     5 | function App() {
diff --git a/playground/backend-integration/server.js b/playground/backend-integration/server.js
index d12b6679..654d29fb 100644
--- a/playground/backend-integration/server.js
+++ b/playground/backend-integration/server.js
@@ -10,7 +10,7 @@ const __dirname = path.dirname(fileURLToPath(import.meta.url))
 const rootDir = path.resolve(__dirname)
 export const port = 3008
 
-export async function createServer(port) {
+export async function createServer() {
   const app = express()
   const viteDevServer = await createViteServer({ root: rootDir })
 
diff --git a/playground/vitestSetup.ts b/playground/vitestSetup.ts
index f48f0abc..29446901 100644
--- a/playground/vitestSetup.ts
+++ b/playground/vitestSetup.ts
@@ -114,8 +114,8 @@ beforeAll(async (s) => {
       rootDir = fs.existsSync(testCustomRoot) ? testCustomRoot : testDir
 
       const testCustomServe = [
-        resolve(dirname(testPath), 'serve.ts'),
-        resolve(dirname(testPath), 'serve.js'),
+        resolve(dirname(rootDir), 'serve.ts'),
+        resolve(dirname(rootDir), 'serve.js'),
       ].find((i) => fs.existsSync(i))
 
       if (testCustomServe && isServe) {