diff --git a/packages/start-client-core/src/index.tsx b/packages/start-client-core/src/index.tsx
index 5be7fcc4e41..fb50145deeb 100644
--- a/packages/start-client-core/src/index.tsx
+++ b/packages/start-client-core/src/index.tsx
@@ -75,6 +75,7 @@ export type {
   NextFn,
   Method,
   StaticCachedResult,
+  OptionalFetcher,
 } from './createServerFn'
 export {
   applyMiddleware,