diff --git a/packages/svelte2tsx/src/helpers/sveltekit.ts b/packages/svelte2tsx/src/helpers/sveltekit.ts
index 3a5d79bc9..d312fb7bc 100644
--- a/packages/svelte2tsx/src/helpers/sveltekit.ts
+++ b/packages/svelte2tsx/src/helpers/sveltekit.ts
@@ -212,7 +212,7 @@ function upserKitRouteFile(
             !api.hasTypeDefinition
         ) {
             const pos = api.node.parameters[0].getEnd();
-            const inserted = surround(`: import('./$types').RequestHandler`);
+            const inserted = surround(`: import('./$types').RequestEvent`);
 
             insert(pos, inserted);
         }