diff --git a/src/client/stdio.test.ts b/src/client/stdio.test.ts
index 0e92eac1..3d76a819 100644
--- a/src/client/stdio.test.ts
+++ b/src/client/stdio.test.ts
@@ -130,12 +130,12 @@ test("should override default environment variables with custom ones", async ()
     }
   });
 
-test("should return child process pid", async () => {
-  const client = new StdioClientTransport(serverParameters);
-
-  await client.start();
-  expect(client.pid).not.toBeNull();
-  await client.close();
-  expect(client.pid).toBeNull();
+  test("should return child process pid", async () => {
+    const client = new StdioClientTransport(serverParameters);
 
+    await client.start();
+    expect(client.pid).not.toBeNull();
+    await client.close();
+    expect(client.pid).toBeNull();
+  });
 });