diff --git a/src/Gateway.php b/src/Gateway.php
index 2d3d3b7..c6c8f6c 100644
--- a/src/Gateway.php
+++ b/src/Gateway.php
@@ -14,6 +14,7 @@
  * @property-read string $environment
  * @property-read string $id
  * @property-read string $token
+ * @property \CraigPaul\Moneris\Transaction $transaction
  */
 class Gateway
 {