diff --git a/src/classes/queue-events.ts b/src/classes/queue-events.ts
index 450b26d2ce..e6a8e12e62 100644
--- a/src/classes/queue-events.ts
+++ b/src/classes/queue-events.ts
@@ -4,6 +4,10 @@ import { QueueBase } from './queue-base';
 import { StreamReadRaw } from '../interfaces/redis-streams';
 
 export declare interface QueueEvents {
+  on(
+    event: 'active',
+    listener: (args: { jobId: string }, prev?: string) => void,
+  ): this;
   on(
     event: 'waiting',
     listener: (args: { jobId: string }, id: string) => void,
diff --git a/src/test/test_delay.ts b/src/test/test_delay.ts
index 1dbf7b2b45..fc8f9baa42 100644
--- a/src/test/test_delay.ts
+++ b/src/test/test_delay.ts
@@ -1,12 +1,12 @@
-import { Queue, Job } from '@src/classes';
+import { Queue, Job } from '../classes';
 import { describe, beforeEach, it } from 'mocha';
 import { expect } from 'chai';
 import * as IORedis from 'ioredis';
 import { v4 } from 'uuid';
-import { Worker } from '@src/classes/worker';
-import { QueueEvents } from '@src/classes/queue-events';
-import { QueueScheduler } from '@src/classes/queue-scheduler';
-import { removeAllQueueData } from '@src/utils';
+import { Worker } from '../classes/worker';
+import { QueueEvents } from '../classes/queue-events';
+import { QueueScheduler } from '../classes/queue-scheduler';
+import { removeAllQueueData } from '../utils';
 
 describe('Delayed jobs', function() {
   this.timeout(15000);
diff --git a/src/test/test_events.ts b/src/test/test_events.ts
index 9b475188ad..9e77412711 100644
--- a/src/test/test_events.ts
+++ b/src/test/test_events.ts
@@ -108,17 +108,22 @@ describe('events', function() {
 
     let state: string;
     await delay(50); // additional delay since XREAD from '$' is unstable
-    queueEvents.on('waiting', function() {
+    queueEvents.on('waiting', function({ jobId }) {
+      expect(jobId).to.be.equal('1');
       expect(state).to.be.undefined;
       state = 'waiting';
     });
-    queueEvents.once('active', function() {
+    queueEvents.once('active', function({ jobId, prev }) {
+      expect(jobId).to.be.equal('1');
+      expect(prev).to.be.equal('waiting');
       expect(state).to.be.equal('waiting');
       state = 'active';
     });
 
     const completed = new Promise(resolve => {
-      queueEvents.once('completed', async function() {
+      queueEvents.once('completed', async function({ jobId, returnvalue }) {
+        expect(jobId).to.be.equal('1');
+        expect(returnvalue).to.be.null;
         expect(state).to.be.equal('active');
         resolve();
       });