diff --git a/packages/dev-server-esbuild/test/fixture/a/b/foo.ts b/packages/dev-server-esbuild/test/fixture/a/b/foo.ts
index d8c813adf..b334a10b3 100644
--- a/packages/dev-server-esbuild/test/fixture/a/b/foo.ts
+++ b/packages/dev-server-esbuild/test/fixture/a/b/foo.ts
@@ -1,4 +1,6 @@
-// a comment
+class SomeClass {
+    prop: string
+}
 
 import 'some-lib/some-file.js';
 import '../../x.js';
diff --git a/packages/dev-server-esbuild/test/fixture/tsconfig.json b/packages/dev-server-esbuild/test/fixture/tsconfig.json
index 9bc73946f..5056d0928 100644
--- a/packages/dev-server-esbuild/test/fixture/tsconfig.json
+++ b/packages/dev-server-esbuild/test/fixture/tsconfig.json
@@ -1,5 +1,6 @@
 {
   "compilerOptions": {
-    "removeComments": false
+    "target": "es2022",
+    "useDefineForClassFields": true
   }
 }
diff --git a/packages/dev-server-esbuild/test/ts.test.ts b/packages/dev-server-esbuild/test/ts.test.ts
index 7082088ab..fc07587e2 100644
--- a/packages/dev-server-esbuild/test/ts.test.ts
+++ b/packages/dev-server-esbuild/test/ts.test.ts
@@ -245,7 +245,7 @@ class Bar {
   });
 
 
-  it('reads tsconfig.json file', async () => {
+  it.only('reads tsconfig.json file', async () => {
     const { server, host } = await createTestServer({
       rootDir: path.join(__dirname, 'fixture'),
       plugins: [
@@ -265,7 +265,7 @@ class Bar {
         'application/javascript; charset=utf-8',
       );
 
-      expectIncludes(text, '// a comment');
+      expectIncludes(text, '__publicField(this, "prop");');
     } finally {
       server.stop();
     }