diff --git a/modules/store/src/index.ts b/modules/store/src/index.ts
index 8e3e2b65b1..e5615250a5 100644
--- a/modules/store/src/index.ts
+++ b/modules/store/src/index.ts
@@ -53,4 +53,4 @@ export {
   RootStoreConfig,
   StoreConfig,
 } from './store_module';
-export { on, createReducer } from './reducer_creator';
+export { On, on, createReducer } from './reducer_creator';