diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/ResourceAllocationController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/ResourceAllocationController.java
index a8e3235da..30c224db9 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/ResourceAllocationController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/ResourceAllocationController.java
@@ -46,7 +46,16 @@ public class ResourceAllocationController extends GenericForwardComposer {
     private Window window;
 
     public Set<Criterion> getCriterions() {
-        return resourceAllocationModel.getCriterions();
+        Set<Criterion> criterions = resourceAllocationModel.getCriterions();
+        if (criterions.isEmpty()) {
+            window.getFellow("requiredCriterions").setVisible(false);
+            window.getFellow("requiredCriterionsEmpty").setVisible(true);
+        } else {
+            window.getFellow("requiredCriterionsEmpty").setVisible(false);
+            window.getFellow("requiredCriterions").setVisible(true);
+        }
+
+        return criterions;
     }
 
     public Set<ResourceAllocation> getResourceAllocations() {
diff --git a/navalplanner-webapp/src/main/webapp/planner/order.zul b/navalplanner-webapp/src/main/webapp/planner/order.zul
index 5c7c012c2..ee9b44f2b 100644
--- a/navalplanner-webapp/src/main/webapp/planner/order.zul
+++ b/navalplanner-webapp/src/main/webapp/planner/order.zul
@@ -51,6 +51,7 @@
                     <listcell label="@{criterion.name}"></listcell>
                 </listitem>
             </listbox>
+            <label id="requiredCriterionsEmpty" value="None" visible="false" />
             <hbox>
                 <button id="addResourceAllocation" label="Add"
                     onClick="allocationController.addResourceAllocation();" />