diff --git a/frontend/src/routes/+page.server.ts b/frontend/src/routes/+page.server.ts
index def3534f..da2a12e2 100644
--- a/frontend/src/routes/+page.server.ts
+++ b/frontend/src/routes/+page.server.ts
@@ -19,7 +19,12 @@ export async function load({ url, fetch }) {
 	const sort: ValidSort = (VALID_SORTS as readonly string[]).includes(rawSort)
 		? (rawSort as ValidSort)
 		: 'DATE';
-	const dir = url.searchParams.get('dir') || 'desc';
+	const VALID_DIRS = ['asc', 'desc'] as const;
+	type ValidDir = (typeof VALID_DIRS)[number];
+	const rawDir = url.searchParams.get('dir') ?? 'desc';
+	const dir: ValidDir = (VALID_DIRS as readonly string[]).includes(rawDir)
+		? (rawDir as ValidDir)
+		: 'desc';
 	const tagQ = url.searchParams.get('tagQ') || '';
 
 	const isDashboard = !q && !from && !to && !senderId && !receiverId && !tags.length && !tagQ;