diff --git a/libreplan-business/src/main/java/org/libreplan/business/users/daos/ProfileDAO.java b/libreplan-business/src/main/java/org/libreplan/business/users/daos/ProfileDAO.java
index 16dbf9ecc..c6afe7c42 100644
--- a/libreplan-business/src/main/java/org/libreplan/business/users/daos/ProfileDAO.java
+++ b/libreplan-business/src/main/java/org/libreplan/business/users/daos/ProfileDAO.java
@@ -65,6 +65,7 @@ public class ProfileDAO extends GenericDAOHibernate<Profile, Long> implements
     }
 
     @Override
+    @Transactional(readOnly = true)
     public Profile findByProfileName(String profileName)
         throws InstanceNotFoundException{