diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/DayAssigment.java b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/DayAssigment.java
index 4737eb209..feb62fdc1 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/DayAssigment.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/DayAssigment.java
@@ -10,6 +10,7 @@ import java.util.Map;
 import java.util.Map.Entry;
 
 import org.apache.commons.lang.Validate;
+import org.apache.commons.lang.builder.ToStringBuilder;
 import org.hibernate.validator.Min;
 import org.hibernate.validator.NotNull;
 import org.joda.time.LocalDate;
@@ -68,6 +69,11 @@ public abstract class DayAssigment extends BaseEntity {
         return day;
     }
 
+    @Override
+    public String toString() {
+        return ToStringBuilder.reflectionToString(this);
+    }
+
     public static Comparator<DayAssigment> byDayComparator() {
         return new Comparator<DayAssigment>() {