diff --git a/RFXtoRP_HsrPro.ftl b/RFXtoRP_HsrPro.ftl
index 5bf0bcd..c1ec47e 100644
--- a/RFXtoRP_HsrPro.ftl
+++ b/RFXtoRP_HsrPro.ftl
@@ -18,7 +18,7 @@
        [
 
           <#-- check preparation type code (internal order and reservation are ignored)  -->
-          <#if preparation_order.preparation_type_code == "010" || preparation_order.preparation_type_code == "030">
+          <#if preparation_order.preparation_type_code?? && (preparation_order.preparation_type_code == "010" || preparation_order.preparation_type_code == "030")>
             <#-- Only if preparation order not confirmed  -->
             <#if preparation_order.preparation_order_confirmed == "false" >
             {