diff --git a/src/StaticMappers/Vouchers/PromotionMapper.php b/src/StaticMappers/Vouchers/PromotionMapper.php
index db6981a..ca5ab45 100644
--- a/src/StaticMappers/Vouchers/PromotionMapper.php
+++ b/src/StaticMappers/Vouchers/PromotionMapper.php
@@ -8,6 +8,12 @@ class PromotionMapper
 {
     public static function map($data): Promotion
     {
+        if (is_array($data->attributes)) {
+            $attributes = $data->attributes;
+        } else {
+            $attributes = get_object_vars($data->attributes);
+        }
+
         return new Promotion(
             $data->uuid,
             $data->name,
@@ -15,7 +21,7 @@ public static function map($data): Promotion
             $data->voucher_limit ?? null,
             $data->limit_per_contact ?? null,
             $data->expiration_duration ?? null,
-            isset($data->attributes) ? get_object_vars($data->attributes) : []
+            isset($data->attributes) ? $attributes : []
         );
     }
 }