diff --git a/src/Controller/InsuranceController.php b/src/Controller/InsuranceController.php
index 6c72c17f..b76874fe 100644
--- a/src/Controller/InsuranceController.php
+++ b/src/Controller/InsuranceController.php
@@ -40,7 +40,7 @@ class InsuranceController extends Controller
         // END DEBUG
 
         // if no transaction code given, silently fail
-        if (empty($attr['transaction_code'])) {
+        if (empty($payload['transaction_code'])) {
             error_log("Invalid insurance callback received: " . print_r($payload, true));
 
             return $this->json([