diff --git a/libs/horizon/index.ts b/libs/horizon/index.ts
index 05aa5d6f..eae3c451 100644
--- a/libs/horizon/index.ts
+++ b/libs/horizon/index.ts
@@ -145,6 +145,7 @@ export {
   clearStore,
   reduxAdapter,
   watch,
+  // 兼容ReactIs
   isFragment,
   isElement,
   isForwardRef,