diff --git a/app/adminapi/logic/financial/FinancialRefundLogic.php b/app/adminapi/logic/financial/FinancialRefundLogic.php
index d286b971c..f4c9c2ffe 100644
--- a/app/adminapi/logic/financial/FinancialRefundLogic.php
+++ b/app/adminapi/logic/financial/FinancialRefundLogic.php
@@ -97,7 +97,7 @@
 			}
 		}
 		
-		public static function download(array $params): bool
+		public static function download(array $params): bool|string
 		{
 			try {
 				$data = FinancialRefund::field('annex')->where('id', $params['id'])->findOrEmpty();