diff --git a/lib/Citycom/OanApiHelper.php b/lib/Citycom/OanApiHelper.php
index 3d1e39b7b..969b8a27c 100644
--- a/lib/Citycom/OanApiHelper.php
+++ b/lib/Citycom/OanApiHelper.php
@@ -298,7 +298,7 @@ class Citycom_OanApiHelper {
                 return false;
             }
 
-            $service_data["product_id"] = $product_id;
+            $service_data["product"] = $product_id;
         }
 
         if(!count($service_data)) return true;