1 files changed, 1 insertions, 1 deletions
diff --git a/src/util/taleruri.ts b/src/util/taleruri.ts
index 8ad79669f..46cc199f8 100644
--- a/src/util/taleruri.ts
+++ b/src/util/taleruri.ts
@@ -97,7 +97,7 @@ export function classifyTalerUri(s: string): TalerUriType {
   return TalerUriType.Unknown;
 }
 
-export function getOrderDownloadUrl(merchantBaseUrl: string, orderId: string) {
+export function getOrderDownloadUrl(merchantBaseUrl: string, orderId: string): string {
   const u = new URL("proposal", merchantBaseUrl);
   u.searchParams.set("order_id", orderId);
   return u.href;