diff --git a/src/Result/Transaction/Transaction.php b/src/Result/Transaction/Transaction.php
index d0bff1f7..0d2c9def 100644
--- a/src/Result/Transaction/Transaction.php
+++ b/src/Result/Transaction/Transaction.php
@@ -76,7 +76,7 @@ public function isCanceled()
      */
     public function isRefunded($allowPartialRefunds = true)
     {
-        if ($this->data['paymentDetails']['state'] == 'REFUND') {
+        if ($this->data['paymentDetails']['stateName'] == 'REFUND') {
             return true;
         }