diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderElement.java b/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderElement.java
index f03ce6971..f6d22011c 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderElement.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderElement.java
@@ -1376,4 +1376,16 @@ public abstract class OrderElement extends IntegrationEntity implements
         return true;
     }
 
+    public void removeDirectAdvancesInList(
+            Set<DirectAdvanceAssignment> directAdvanceAssignments) {
+        for (DirectAdvanceAssignment each : directAdvanceAssignments) {
+            removeAdvanceAssignment(getAdvanceAssignmentByType(each
+                    .getAdvanceType()));
+        }
+
+        for (OrderElement each : getChildren()) {
+            each.removeDirectAdvancesInList(directAdvanceAssignments);
+        }
+    }
+
 }
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderLineGroup.java b/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderLineGroup.java
index 288e3f97c..f9a684611 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderLineGroup.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/orders/entities/OrderLineGroup.java
@@ -244,25 +244,15 @@ public class OrderLineGroup extends OrderElement implements
     }
 
     private void addIndirectAdvanceAssignments(OrderElement orderElement) {
-        Set<AdvanceAssignment> toRemove = new HashSet<AdvanceAssignment>();
+        orderElement.removeDirectAdvancesInList(directAdvanceAssignments);
 
         for (DirectAdvanceAssignment directAdvanceAssignment : orderElement.directAdvanceAssignments) {
-            if (getDirectAdvanceAssignmentByType(directAdvanceAssignment
-                    .getAdvanceType()) != null) {
-                toRemove.add(directAdvanceAssignment);
-            } else {
-                IndirectAdvanceAssignment indirectAdvanceAssignment = IndirectAdvanceAssignment
-                        .create();
-                indirectAdvanceAssignment
-                        .setAdvanceType(directAdvanceAssignment
-                                .getAdvanceType());
-                indirectAdvanceAssignment.setOrderElement(this);
-                this.addIndirectAdvanceAssignment(indirectAdvanceAssignment);
-            }
-        }
-
-        for (AdvanceAssignment each : toRemove) {
-            orderElement.removeAdvanceAssignment(each);
+            IndirectAdvanceAssignment indirectAdvanceAssignment = IndirectAdvanceAssignment
+                    .create();
+            indirectAdvanceAssignment.setAdvanceType(directAdvanceAssignment
+                    .getAdvanceType());
+            indirectAdvanceAssignment.setOrderElement(this);
+            this.addIndirectAdvanceAssignment(indirectAdvanceAssignment);
         }
 
         if (orderElement instanceof OrderLineGroup) {