diff --git a/packages/jest-worker/src/__tests__/index.test.js b/packages/jest-worker/src/__tests__/index.test.js
index eae8116f2e1f..db0e2787ad32 100644
--- a/packages/jest-worker/src/__tests__/index.test.js
+++ b/packages/jest-worker/src/__tests__/index.test.js
@@ -141,10 +141,10 @@ it('does not let end the farm after it is ended', () => {
 
   farm.end();
   expect(farm._workerPool.end).toHaveBeenCalledTimes(1);
-  expect(() => farm.end()).toThrow(
+  expect(farm.end()).rejects.toThrow(
     'Farm is ended, no more calls can be done to it',
   );
-  expect(() => farm.end()).toThrow(
+  expect(farm.end()).rejects.toThrow(
     'Farm is ended, no more calls can be done to it',
   );
   expect(farm._workerPool.end).toHaveBeenCalledTimes(1);
diff --git a/packages/jest-worker/src/index.ts b/packages/jest-worker/src/index.ts
index acbb3dda4944..459c5ac43f88 100644
--- a/packages/jest-worker/src/index.ts
+++ b/packages/jest-worker/src/index.ts
@@ -137,12 +137,12 @@ export default class JestWorker {
     return this._workerPool.getStdout();
   }
 
-  end(): Promise<PoolExitResult> {
+  async end(): Promise<PoolExitResult> {
     if (this._ending) {
       throw new Error('Farm is ended, no more calls can be done to it');
     }
     this._ending = true;
 
-    return this._workerPool.end();
+    return await this._workerPool.end();
   }
 }