diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderModel.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderModel.java
index ad13498fa..ac87acd6a 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderModel.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderModel.java
@@ -496,11 +496,17 @@ public class OrderModel extends IntegrationEntityModel implements IOrderModel {
 
         dontPoseAsTransientObjectAnymore(orderElement
                 .getIndirectAdvanceAssignments());
-        dontPoseAsTransientObjectAnymore(orderElement.getDirectCriterionRequirement());
+        dontPoseAsTransientObjectAnymore(orderElement
+                .getCriterionRequirements());
         dontPoseAsTransientObjectAnymore(orderElement.getLabels());
         dontPoseAsTransientObjectAnymore(orderElement.getTaskElements());
         dontPoseAsTransientObjectAnymore(orderElement.getHoursGroups());
 
+        for (HoursGroup hoursGroup : orderElement.getHoursGroups()) {
+            dontPoseAsTransientObjectAnymore(hoursGroup
+                    .getCriterionRequirements());
+        }
+
         for(OrderElement child : orderElement.getAllChildren()) {
             child.dontPoseAsTransientObjectAnymore();
             dontPoseAsTransientObjectAnymore(child);