diff --git a/src/Components/RefundManager/Builder/RefundDataBuilder.php b/src/Components/RefundManager/Builder/RefundDataBuilder.php
index 44107df98..253d6695f 100644
--- a/src/Components/RefundManager/Builder/RefundDataBuilder.php
+++ b/src/Components/RefundManager/Builder/RefundDataBuilder.php
@@ -275,7 +275,13 @@ private function getRefundedQuantity(string $mollieLineItemId, \Mollie\Api\Resou
                 continue;
             }
 
-            $metadata = RefundMetadata::fromArray($refund['metadata']);
+            $meta = $refund['metadata'];
+
+            if (is_string($meta)) {
+                $meta = json_decode($meta, true);
+            }
+
+            $metadata = RefundMetadata::fromArray($meta);
 
             # if we do have a FULL item refund then
             # we must NOT substract our item again.
diff --git a/src/Hydrator/RefundHydrator.php b/src/Hydrator/RefundHydrator.php
index a16ff4b6d..52fdd947f 100644
--- a/src/Hydrator/RefundHydrator.php
+++ b/src/Hydrator/RefundHydrator.php
@@ -36,7 +36,7 @@ public function hydrate(Refund $refund, OrderEntity $order): array
         $metaData = '';
 
         if (property_exists($refund, 'metadata')) {
-            $metaData = (string)json_encode($refund->metadata);
+            $metaData = $refund->metadata;
         }
 
         $internalDescription = null;