From 5fb59ccb41469c96e58af949eee69bc1a3ca54a8 Mon Sep 17 00:00:00 2001
From: Matt Brophy <matt@brophy.org>
Date: Mon, 29 Jul 2024 09:57:01 -0400
Subject: [PATCH] Single Fetch: Add undefined to the useRouteLoaderData type
 override (#9796)

---
 .changeset/silver-laws-invite.md              | 5 +++++
 packages/remix-react/future/single-fetch.d.ts | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/silver-laws-invite.md

diff --git a/.changeset/silver-laws-invite.md b/.changeset/silver-laws-invite.md
new file mode 100644
index 00000000000..70218a39213
--- /dev/null
+++ b/.changeset/silver-laws-invite.md
@@ -0,0 +1,5 @@
+---
+"@remix-run/react": patch
+---
+
+Single Fetch: Add `undefined` to the `useRouteLoaderData` type override
diff --git a/packages/remix-react/future/single-fetch.d.ts b/packages/remix-react/future/single-fetch.d.ts
index ede86e5fe7d..165b318569c 100644
--- a/packages/remix-react/future/single-fetch.d.ts
+++ b/packages/remix-react/future/single-fetch.d.ts
@@ -26,7 +26,7 @@ declare module "@remix-run/react" {
 
   export function useRouteLoaderData<T extends Loader>(
     routeId: string
-  ): Serialize<T>;
+  ): Serialize<T> | undefined;
 
   export function useFetcher<T extends Loader | Action>(
     opts?: Parameters<typeof useFetcherRR>[0]