diff --git a/packages/reactivity/src/baseWatch.ts b/packages/reactivity/src/baseWatch.ts
index b797fc61e4f..30e725de7f2 100644
--- a/packages/reactivity/src/baseWatch.ts
+++ b/packages/reactivity/src/baseWatch.ts
@@ -25,6 +25,7 @@ export enum BaseWatchErrorCodes {
   WATCH_CLEANUP = 'BaseWatchErrorCodes_WATCH_CLEANUP'
 }
 
+// TODO move to a scheduler package
 export interface SchedulerJob extends Function {
   id?: number
   pre?: boolean
diff --git a/packages/reactivity/src/index.ts b/packages/reactivity/src/index.ts
index 035477ef687..b8db85d4816 100644
--- a/packages/reactivity/src/index.ts
+++ b/packages/reactivity/src/index.ts
@@ -71,6 +71,7 @@ export {
 export { TrackOpTypes, TriggerOpTypes, ReactiveFlags } from './constants'
 export {
   baseWatch,
+  onEffectCleanup,
   BaseWatchErrorCodes,
   type BaseWatchOptions
 } from './baseWatch'
diff --git a/packages/runtime-core/src/index.ts b/packages/runtime-core/src/index.ts
index 06300cbf68f..e0129ff6daf 100644
--- a/packages/runtime-core/src/index.ts
+++ b/packages/runtime-core/src/index.ts
@@ -28,6 +28,7 @@ export {
   // effect
   effect,
   stop,
+  onEffectCleanup,
   ReactiveEffect,
   // effect scope
   effectScope,