diff --git a/packages/dispatcher/src/state/index.ts b/packages/dispatcher/src/state/index.ts
index 3195b60b..959b600c 100644
--- a/packages/dispatcher/src/state/index.ts
+++ b/packages/dispatcher/src/state/index.ts
@@ -1,3 +1,3 @@
 export { IStateStorage } from './storage'
-export { StateKeyDelegate } from './key'
+export { StateKeyDelegate, defaultStateKeyDelegate } from './key'
 export { UpdateState } from './update-state'