diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/GenericResourceAllocation.java b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/GenericResourceAllocation.java
index 674a1ed78..9dca819fa 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/GenericResourceAllocation.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/GenericResourceAllocation.java
@@ -32,6 +32,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
+import org.apache.commons.lang.Validate;
 import org.hibernate.validator.Valid;
 import org.joda.time.LocalDate;
 import org.navalplanner.business.calendars.entities.AvailabilityTimeLine;
@@ -45,6 +46,7 @@ import org.navalplanner.business.resources.entities.Criterion;
 import org.navalplanner.business.resources.entities.CriterionCompounder;
 import org.navalplanner.business.resources.entities.ICriterion;
 import org.navalplanner.business.resources.entities.Resource;
+import org.navalplanner.business.resources.entities.ResourceEnum;
 import org.navalplanner.business.scenarios.entities.Scenario;
 import org.navalplanner.business.util.deepcopy.OnCopy;
 import org.navalplanner.business.util.deepcopy.Strategy;
@@ -106,6 +108,9 @@ public class GenericResourceAllocation extends
     @OnCopy(Strategy.SHARE_COLLECTION_ELEMENTS)
     private Set<Criterion> criterions = new HashSet<Criterion>();
 
+    @OnCopy(Strategy.SHARE)
+    private ResourceEnum resourceType;
+
     private Set<GenericDayAssignmentsContainer> genericDayAssignmentsContainers = new HashSet<GenericDayAssignmentsContainer>();
 
     @Valid
@@ -135,8 +140,24 @@ public class GenericResourceAllocation extends
 
     public static GenericResourceAllocation create(Task task,
             Collection<? extends Criterion> criterions) {
+        return create(task, inferType(criterions), criterions);
+    }
+
+    public static ResourceEnum inferType(
+            Collection<? extends Criterion> criterions) {
+        if (criterions.isEmpty()) {
+            return ResourceEnum.WORKER;
+        }
+        Criterion first = criterions.iterator().next();
+        return first.getType().getResource();
+    }
+
+    public static GenericResourceAllocation create(Task task,
+            ResourceEnum resourceType, Collection<? extends Criterion> criterions) {
+        Validate.notNull(resourceType);
         GenericResourceAllocation result = new GenericResourceAllocation(task);
         result.criterions = new HashSet<Criterion>(criterions);
+        result.resourceType = resourceType;
         result.setResourcesPerDayToAmount(1);
         return create(result);
     }
@@ -571,4 +592,8 @@ public class GenericResourceAllocation extends
         }
     }
 
+    public ResourceEnum getResourceType() {
+        return resourceType != null ? resourceType : inferType(criterions);
+    }
+
 }
diff --git a/navalplanner-business/src/main/resources/org/navalplanner/business/planner/entities/ResourceAllocations.hbm.xml b/navalplanner-business/src/main/resources/org/navalplanner/business/planner/entities/ResourceAllocations.hbm.xml
index 8d95bf8d2..a00d804a3 100644
--- a/navalplanner-business/src/main/resources/org/navalplanner/business/planner/entities/ResourceAllocations.hbm.xml
+++ b/navalplanner-business/src/main/resources/org/navalplanner/business/planner/entities/ResourceAllocations.hbm.xml
@@ -59,6 +59,12 @@
                 <many-to-many class="org.navalplanner.business.resources.entities.Criterion" column="criterion_id"/>
             </set>
 
+            <property name="resourceType">
+              <type name="org.hibernate.type.EnumType">
+                <param name="enumClass">org.navalplanner.business.resources.entities.ResourceEnum</param>
+              </type>
+            </property>
+
             <set name="genericDayAssignmentsContainers" cascade="all-delete-orphan">
                 <key column="RESOURCE_ALLOCATION_ID" />
                 <one-to-many class="GenericDayAssignmentsContainer"/>