diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/FormBinder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/FormBinder.java
index 3f095e64e..68506afd8 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/FormBinder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/FormBinder.java
@@ -29,6 +29,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.Map.Entry;
 
 import org.apache.commons.lang.StringUtils;
 import org.joda.time.LocalDate;
@@ -222,11 +223,20 @@ class FormBinder {
     }
 
     private void reloadValues() {
+        loadHoursValues();
         loadValueForAssignedHoursComponent();
         loadValueForTaskStartDateBox();
         loadValueForEndDate();
     }
 
+    private void loadHoursValues() {
+        for (Entry<AllocationDTO, Intbox> entry : hoursIntboxesByAllocationDTO.entrySet()) {
+            Integer hours = resourceAllocationsBeingEdited.getHoursFor(entry
+                    .getKey());
+            entry.getValue().setValue(hours);
+        }
+    }
+
     public void setApplyButton(Button applyButton) {
         this.applyButton = applyButton;
         this.applyButton.setDisabled(true);
@@ -249,6 +259,7 @@ class FormBinder {
 
     public void setHoursIntboxFor(AllocationDTO data, Intbox hours) {
         hoursIntboxesByAllocationDTO.put(data, hours);
+        hours.setValue(resourceAllocationsBeingEdited.getHoursFor(data));
     }
 
     public int getAssignedHours() {
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/ResourceAllocationsBeingEdited.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/ResourceAllocationsBeingEdited.java
index d496d5c7e..42c34c2fa 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/ResourceAllocationsBeingEdited.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/ResourceAllocationsBeingEdited.java
@@ -80,6 +80,8 @@ public class ResourceAllocationsBeingEdited {
 
     private Integer daysDuration;
 
+    private Map<AllocationDTO, ResourceAllocation<?>> fromDTOToCurrentAllocation = new HashMap<AllocationDTO, ResourceAllocation<?>>();
+
     private ResourceAllocationsBeingEdited(Task task,
             List<AllocationDTO> initialAllocations) {
         this.task = task;
@@ -124,6 +126,15 @@ public class ResourceAllocationsBeingEdited {
         return new ArrayList<AllocationDTO>(currentAllocations);
     }
 
+    public Integer getHoursFor(AllocationDTO allocationDTO) {
+        ResourceAllocation<?> origin = allocationDTO.getOrigin();
+        if (fromDTOToCurrentAllocation.containsKey(allocationDTO)) {
+            return fromDTOToCurrentAllocation.get(allocationDTO)
+                    .getAssignedHours();
+        }
+        return origin != null ? origin.getAssignedHours() : null;
+    }
+
     private boolean alreadyExistsAllocationFor(Resource resource) {
         return !getAllocationsFor(resource).isEmpty();
     }
@@ -232,7 +243,10 @@ public class ResourceAllocationsBeingEdited {
         for (Entry<AllocationDTO, ResourceAllocation<?>> entry : allocationsWithTheirRelatedAllocationsOnTask
                 .entrySet()) {
             AllocationDTO key = entry.getKey();
-            result.put(instantiate(key), entry.getValue());
+            AllocationBeingModified instantiated = instantiate(key);
+            result.put(instantiated, entry.getValue());
+            fromDTOToCurrentAllocation
+                    .put(key, instantiated.getBeingModified());
         }
         return result;
     }