diff --git a/src/Message/ChargeResponse.php b/src/Message/ChargeResponse.php
index ebc1272..8d2f14d 100755
--- a/src/Message/ChargeResponse.php
+++ b/src/Message/ChargeResponse.php
@@ -78,7 +78,7 @@ public function getMessage()
      */
     public function getTransactionReference()
     {
-        return $this->getOrderId();
+        return $this->getTransactionId();
     }
 
     /**