diff --git a/packages/runtime-core/src/apiSetupHelpers.ts b/packages/runtime-core/src/apiSetupHelpers.ts
index 509c280d63b..e3910182509 100644
--- a/packages/runtime-core/src/apiSetupHelpers.ts
+++ b/packages/runtime-core/src/apiSetupHelpers.ts
@@ -94,7 +94,7 @@ export function defineProps() {
   return null as any
 }
 
-type DefineProps<T, BKeys extends keyof T> = Readonly<T> & {
+export type DefineProps<T, BKeys extends keyof T> = Readonly<T> & {
   readonly [K in BKeys]-?: boolean
 }
 
diff --git a/packages/runtime-core/src/index.ts b/packages/runtime-core/src/index.ts
index 4c36250683e..ab86bfce7dc 100644
--- a/packages/runtime-core/src/index.ts
+++ b/packages/runtime-core/src/index.ts
@@ -60,7 +60,7 @@ export { provide, inject, hasInjectionContext } from './apiInject'
 export { nextTick } from './scheduler'
 export { defineComponent } from './apiDefineComponent'
 export { defineAsyncComponent } from './apiAsyncComponent'
-export { useAttrs, useSlots } from './apiSetupHelpers'
+export { useAttrs, useSlots, type DefineProps } from './apiSetupHelpers'
 
 // <script setup> API ----------------------------------------------------------