diff --git a/src/index.ts b/src/index.ts
index ccc0e8e8..49d0c052 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,4 +1,4 @@
-import record, { addCustomEvent } from './record';
+import record from './record';
 import { Replayer } from './replay';
 import { mirror } from './utils';
 
@@ -8,4 +8,4 @@ export {
   MouseInteractions,
   ReplayerEvents,
 } from './types';
-export { record, addCustomEvent, Replayer, mirror };
+export { record, Replayer, mirror };
diff --git a/src/record/index.ts b/src/record/index.ts
index 3d1dd7fa..72d87fe0 100644
--- a/src/record/index.ts
+++ b/src/record/index.ts
@@ -25,21 +25,6 @@ function wrapEvent(e: event): eventWithTime {
 
 let wrappedEmit!: (e: eventWithTime, isCheckout?: boolean) => void;
 
-export function addCustomEvent<T>(tag: string, payload: T) {
-  if (!wrappedEmit) {
-    throw new Error('please add custom event after start recording');
-  }
-  wrappedEmit(
-    wrapEvent({
-      type: EventType.Custom,
-      data: {
-        tag,
-        payload,
-      },
-    }),
-  );
-}
-
 function record(options: recordOptions = {}): listenerHandler | undefined {
   const {
     emit,
diff --git a/test/record.test.ts b/test/record.test.ts
index e3213144..ca56a6d0 100644
--- a/test/record.test.ts
+++ b/test/record.test.ts
@@ -23,7 +23,6 @@ interface ISuite extends Suite {
 interface IWindow extends Window {
   rrweb: {
     record: (options: recordOptions) => listenerHandler | undefined;
-    addCustomEvent<T>(tag: string, payload: T): void;
   };
   emit: (e: eventWithTime) => undefined;
 }
@@ -181,19 +180,4 @@ describe('record', function(this: ISuite) {
     await this.page.waitFor(50);
     assertSnapshot(this.events, __filename, 'async-checkout');
   });
-
-  it('can add custom event', async () => {
-    await this.page.evaluate(() => {
-      const { record, addCustomEvent } = (window as IWindow).rrweb;
-      record({
-        emit: (window as IWindow).emit,
-      });
-      addCustomEvent<number>('tag1', 1);
-      addCustomEvent<{ a: string }>('tag2', {
-        a: 'b',
-      });
-    });
-    await this.page.waitFor(50);
-    assertSnapshot(this.events, __filename, 'custom-event');
-  });
 });
diff --git a/typings/index.d.ts b/typings/index.d.ts
index a378a656..f0360762 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -1,5 +1,5 @@
-import record, { addCustomEvent } from './record';
+import record from './record';
 import { Replayer } from './replay';
 import { mirror } from './utils';
 export { EventType, IncrementalSource, MouseInteractions, ReplayerEvents, } from './types';
-export { record, addCustomEvent, Replayer, mirror };
+export { record, Replayer, mirror };
diff --git a/typings/record/index.d.ts b/typings/record/index.d.ts
index acf2d9f4..3dbb11b5 100644
--- a/typings/record/index.d.ts
+++ b/typings/record/index.d.ts
@@ -1,4 +1,3 @@
 import { recordOptions, listenerHandler } from '../types';
-export declare function addCustomEvent<T>(tag: string, payload: T): void;
 declare function record(options?: recordOptions): listenerHandler | undefined;
 export default record;