diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/ws/calendarexceptiontypes/api/CalendarExceptionTypeDTO.java b/navalplanner-webapp/src/main/java/org/navalplanner/ws/calendarexceptiontypes/api/CalendarExceptionTypeDTO.java
index a96401a63..3070f303f 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/ws/calendarexceptiontypes/api/CalendarExceptionTypeDTO.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/ws/calendarexceptiontypes/api/CalendarExceptionTypeDTO.java
@@ -22,6 +22,7 @@
 package org.navalplanner.ws.calendarexceptiontypes.api;
 
 import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlRootElement;
 
 import org.navalplanner.business.calendars.entities.CalendarExceptionType;
 import org.navalplanner.ws.common.api.IntegrationEntityDTO;
@@ -31,6 +32,7 @@ import org.navalplanner.ws.common.api.IntegrationEntityDTO;
  *
  * @author Manuel Rego Casasnovas <mrego@igalia.com>
  */
+@XmlRootElement(name = "calendar-exception-type")
 public class CalendarExceptionTypeDTO extends IntegrationEntityDTO {
 
     public final static String ENTITY_TYPE = "calendar-exception-type";
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/ws/common/api/OrderDTO.java b/navalplanner-webapp/src/main/java/org/navalplanner/ws/common/api/OrderDTO.java
index b13c78d34..6e87c1057 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/ws/common/api/OrderDTO.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/ws/common/api/OrderDTO.java
@@ -25,6 +25,7 @@ import java.util.List;
 import java.util.Set;
 
 import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlRootElement;
 import javax.xml.datatype.XMLGregorianCalendar;
 
 import org.navalplanner.business.orders.entities.Order;
@@ -34,7 +35,7 @@ import org.navalplanner.business.orders.entities.Order;
  *
  * @author Manuel Rego Casasnovas <mrego@igalia.com>
  */
-
+@XmlRootElement(name = "order")
 public class OrderDTO extends OrderLineGroupDTO {
 
     public final static String ENTITY_TYPE = "order";
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/ws/costcategories/api/CostCategoryDTO.java b/navalplanner-webapp/src/main/java/org/navalplanner/ws/costcategories/api/CostCategoryDTO.java
index d9195e437..03e12c007 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/ws/costcategories/api/CostCategoryDTO.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/ws/costcategories/api/CostCategoryDTO.java
@@ -27,6 +27,7 @@ import java.util.Set;
 import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlElementWrapper;
+import javax.xml.bind.annotation.XmlRootElement;
 
 import org.navalplanner.business.costcategories.entities.CostCategory;
 import org.navalplanner.ws.common.api.IntegrationEntityDTO;
@@ -35,6 +36,7 @@ import org.navalplanner.ws.common.api.IntegrationEntityDTO;
  * DTO for {@link CostCategory} entity.
  * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
  */
+@XmlRootElement(name = "cost-category")
 public class CostCategoryDTO extends IntegrationEntityDTO {
 
     public final static String ENTITY_TYPE = "cost-category";
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/ws/labels/api/LabelTypeDTO.java b/navalplanner-webapp/src/main/java/org/navalplanner/ws/labels/api/LabelTypeDTO.java
index 82b9f6092..2a5ee935e 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/ws/labels/api/LabelTypeDTO.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/ws/labels/api/LabelTypeDTO.java
@@ -27,6 +27,7 @@ import java.util.List;
 import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlElementWrapper;
+import javax.xml.bind.annotation.XmlRootElement;
 
 import org.navalplanner.business.labels.entities.LabelType;
 import org.navalplanner.ws.common.api.IntegrationEntityDTO;
@@ -36,6 +37,7 @@ import org.navalplanner.ws.common.api.IntegrationEntityDTO;
  *
  * @author Manuel Rego Casasnovas <mrego@igalia.com>
  */
+@XmlRootElement(name = "label-type")
 public class LabelTypeDTO extends IntegrationEntityDTO {
 
     public final static String ENTITY_TYPE = "label-type";
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/ws/materials/api/MaterialCategoryDTO.java b/navalplanner-webapp/src/main/java/org/navalplanner/ws/materials/api/MaterialCategoryDTO.java
index dcbc6b4a2..95c099acd 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/ws/materials/api/MaterialCategoryDTO.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/ws/materials/api/MaterialCategoryDTO.java
@@ -27,6 +27,7 @@ import java.util.List;
 import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlElementWrapper;
+import javax.xml.bind.annotation.XmlRootElement;
 
 import org.navalplanner.ws.common.api.IntegrationEntityDTO;
 
@@ -34,6 +35,7 @@ import org.navalplanner.ws.common.api.IntegrationEntityDTO;
  * DTO for <code>MaterialCategory</code> entity.
  * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
  */
+@XmlRootElement(name = "material-category")
 public class MaterialCategoryDTO extends IntegrationEntityDTO {
 
     public final static String ENTITY_TYPE = "material-category";
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/ws/resources/api/MachineDTO.java b/navalplanner-webapp/src/main/java/org/navalplanner/ws/resources/api/MachineDTO.java
index 1a2a86b58..a0153cffd 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/ws/resources/api/MachineDTO.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/ws/resources/api/MachineDTO.java
@@ -22,12 +22,14 @@
 package org.navalplanner.ws.resources.api;
 
 import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlRootElement;
 
 /**
  * DTO for <code>Machine</code> entity.
  *
  * @author Fernando Bellas Permuy <fbellas@udc.es>
  */
+@XmlRootElement(name = "machine")
 public class MachineDTO extends ResourceDTO {
 
     public final static String ENTITY_TYPE = "machine";
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/ws/resources/api/WorkerDTO.java b/navalplanner-webapp/src/main/java/org/navalplanner/ws/resources/api/WorkerDTO.java
index 80db7ba10..aec11bf8d 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/ws/resources/api/WorkerDTO.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/ws/resources/api/WorkerDTO.java
@@ -22,12 +22,14 @@
 package org.navalplanner.ws.resources.api;
 
 import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlRootElement;
 
 /**
  * DTO for <code>Worker</code> entity.
  *
  * @author Fernando Bellas Permuy <fbellas@udc.es>
  */
+@XmlRootElement(name = "worker")
 public class WorkerDTO extends ResourceDTO {
 
     public final static String ENTITY_TYPE = "worker";
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/ws/resources/criterion/api/CriterionTypeDTO.java b/navalplanner-webapp/src/main/java/org/navalplanner/ws/resources/criterion/api/CriterionTypeDTO.java
index af21f8c73..c04c30a0e 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/ws/resources/criterion/api/CriterionTypeDTO.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/ws/resources/criterion/api/CriterionTypeDTO.java
@@ -27,6 +27,7 @@ import java.util.List;
 import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlElementWrapper;
+import javax.xml.bind.annotation.XmlRootElement;
 
 import org.navalplanner.ws.common.api.IntegrationEntityDTO;
 import org.navalplanner.ws.common.api.ResourceEnumDTO;
@@ -36,6 +37,7 @@ import org.navalplanner.ws.common.api.ResourceEnumDTO;
  *
  * @author Fernando Bellas Permuy <fbellas@udc.es>
  */
+@XmlRootElement(name = "criterion-type")
 public class CriterionTypeDTO extends IntegrationEntityDTO {
 
     public final static String ENTITY_TYPE = "criterion-type";
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/ws/typeofworkhours/api/TypeOfWorkHoursDTO.java b/navalplanner-webapp/src/main/java/org/navalplanner/ws/typeofworkhours/api/TypeOfWorkHoursDTO.java
index 323ad7811..e40568bdc 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/ws/typeofworkhours/api/TypeOfWorkHoursDTO.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/ws/typeofworkhours/api/TypeOfWorkHoursDTO.java
@@ -24,6 +24,7 @@ package org.navalplanner.ws.typeofworkhours.api;
 import java.math.BigDecimal;
 
 import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlRootElement;
 
 import org.navalplanner.business.costcategories.entities.TypeOfWorkHours;
 import org.navalplanner.ws.common.api.IntegrationEntityDTO;
@@ -32,6 +33,7 @@ import org.navalplanner.ws.common.api.IntegrationEntityDTO;
  * DTO for {@link TypeOfWorkHours} entity.
  * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
  */
+@XmlRootElement(name = "type-work-hours")
 public class TypeOfWorkHoursDTO extends IntegrationEntityDTO {
 
     public final static String ENTITY_TYPE = "type-work-hours";
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/ws/unittypes/api/UnitTypeDTO.java b/navalplanner-webapp/src/main/java/org/navalplanner/ws/unittypes/api/UnitTypeDTO.java
index a3639a715..0d3824367 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/ws/unittypes/api/UnitTypeDTO.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/ws/unittypes/api/UnitTypeDTO.java
@@ -22,6 +22,7 @@
 package org.navalplanner.ws.unittypes.api;
 
 import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlRootElement;
 
 import org.navalplanner.ws.common.api.IntegrationEntityDTO;
 
@@ -29,6 +30,7 @@ import org.navalplanner.ws.common.api.IntegrationEntityDTO;
  * DTO for <code>UnitType</code> entity.
  * @author Susana Montes Pedreira <smontes@wirelessgalicia.com>
  */
+@XmlRootElement(name = "unit-type")
 public class UnitTypeDTO extends IntegrationEntityDTO {
 
     public final static String ENTITY_TYPE = "unit type";