diff --git a/test/fixture/types.ts b/test/fixture/types.ts
index 4468917f85..d8004b7888 100644
--- a/test/fixture/types.ts
+++ b/test/fixture/types.ts
@@ -205,13 +205,13 @@ describe("API routes", () => {
 
     expectTypeOf($fetch("/api/serialized/map")).toMatchTypeOf<
       Promise<{
-        foo: object;
+        foo: Record<string, never>;
       }>
     >();
 
     expectTypeOf($fetch("/api/serialized/set")).toMatchTypeOf<
       Promise<{
-        foo: object;
+        foo: Record<string, never>;
       }>
     >();