diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/Task.java b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/Task.java
index c0a4a53da..333a047e2 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/Task.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/Task.java
@@ -628,6 +628,13 @@ public class Task extends TaskElement implements ITaskLeafConstraint {
                 || resourceAllocations.isEmpty();
     }
 
+    @Override
+    protected void updateWorkableDays() {
+        if (workableDays != null) {
+            workableDays = getWorkableDaysBetweenDates();
+        }
+    }
+
     @Override
     public boolean canBeExplicitlyResized() {
         return canBeResized() && !isSubcontracted();
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/TaskElement.java b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/TaskElement.java
index 1607f82e9..d012dc11f 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/TaskElement.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/TaskElement.java
@@ -314,11 +314,16 @@ public abstract class TaskElement extends BaseEntity {
         }
         boolean sameDay = this.endDate.areSameDay(endDate.getDate());
         setIntraDayEndDate(endDate);
+        updateWorkableDays();
         if (!sameDay) {
             moveAllocations(scenario);
         }
     }
 
+    // default implementation meant to be override
+    protected void updateWorkableDays() {
+    }
+
     protected abstract boolean canBeResized();
 
     /**