Index: /mods/mod_gutschein/wpsg_voucher.php
===================================================================
--- /mods/mod_gutschein/wpsg_voucher.php	(revision 7945)
+++ /mods/mod_gutschein/wpsg_voucher.php	(revision 7946)
@@ -107,5 +107,5 @@
         }
 
-        public function getAllowedProduct(): bool {
+        public function getAllowedProduct(): array {
 
 			return wpsg_explode(',', $this->__get('products'));