diff --git a/packages/runtime-core/src/index.ts b/packages/runtime-core/src/index.ts
index b9abec16b8a..eb5b037081c 100644
--- a/packages/runtime-core/src/index.ts
+++ b/packages/runtime-core/src/index.ts
@@ -2,6 +2,7 @@
 
 export const version = __VERSION__
 export {
+  effect,
   ref,
   unref,
   shallowRef,