diff --git a/YACOSCore/ejbModule/org/yacos/core/conferences/ConferenceManagerBean.java b/YACOSCore/ejbModule/org/yacos/core/conferences/ConferenceManagerBean.java
index 59adaf6..5f2e108 100644
--- a/YACOSCore/ejbModule/org/yacos/core/conferences/ConferenceManagerBean.java
+++ b/YACOSCore/ejbModule/org/yacos/core/conferences/ConferenceManagerBean.java
@@ -52,13 +52,15 @@ public class ConferenceManagerBean implements IConferenceManager {
 	public List<Conference> getConferences(User user){
 		List<Conference> list = new ArrayList<Conference>();
 		
-		List<Role> tmpList = this.getRoles(user);
-
-		Conference conf;
-		for (Role role : tmpList) {
-			conf = role.getConference();
-			list.add(conf);
+		Query query = em.createQuery("SELECT DISTINCT role.conference FROM Role role WHERE role.user = ?");
+		query.setParameter(1, user);
+		
+		if (query.getResultList().size() > 0 ) {
+			for (Object conf : query.getResultList()) {
+				list.add((Conference) conf);
+			}
 		}
+		
 		return list;
 	}