diff --git a/RFXtoRP_HsrPro_ExecutionflowDetected.ftl b/RFXtoRP_HsrPro_ExecutionflowDetected.ftl
index 6cfdcfd..7be6b7e 100644
--- a/RFXtoRP_HsrPro_ExecutionflowDetected.ftl
+++ b/RFXtoRP_HsrPro_ExecutionflowDetected.ftl
@@ -25,7 +25,7 @@
           "Carrier": {
             "Actor":{
                 "CarrierServices":{
-                  "ID"="{preparation_order.transport_grade_code}"
+                  "ID"="${preparation_order.transport_grade_code}"
               }
           }
         }