diff --git a/app/controllers/Application.scala b/app/controllers/Application.scala
index c01355a4..14032e92 100644
--- a/app/controllers/Application.scala
+++ b/app/controllers/Application.scala
@@ -67,10 +67,18 @@ class Application(implicit val env: Environment[Login, CachedCookieAuthenticator
   }
 
   def conferences = UserAwareAction { implicit request =>
+    val is_admin = request.identity match {
+      case Some(uid) => uid.account.isAdmin
+      case _         => false
+    }
+
     val conferences = conferenceService.list()
 
-    val list_opened = conferences.filter(conf => conf.isOpen)
     val list_published = conferences.filter(conf => conf.isPublished && !conf.isOpen)
+    var list_opened = conferences.filter(conf => !list_published.contains(conf))
+    if (!is_admin) {
+      list_opened = list_opened.filter(conf => conf.isOpen)
+    }
 
     Ok(views.html.conferencelist(request.identity.map{ _.account }, list_opened, list_published))
   }
@@ -112,7 +120,6 @@ class Application(implicit val env: Environment[Login, CachedCookieAuthenticator
     }
   }
 
-
   def adminAbstracts(confId: String) = SecuredAction { implicit request =>
     val conference = conferenceService.get(confId)
 
diff --git a/app/models/Conference.scala b/app/models/Conference.scala
index 18213e43..8ae11d35 100644
--- a/app/models/Conference.scala
+++ b/app/models/Conference.scala
@@ -33,6 +33,7 @@ class Conference extends Model with Owned {
   def dateFormatter = DateTimeFormat.forPattern("d MMMM, yyyy")
 
   var name: String = _
+  @Column(unique = true)
   var short: String = _
   var cite: String = _
   var link: String = _
diff --git a/test/controller/ConferenceCtrlTest.scala b/test/controller/ConferenceCtrlTest.scala
index 2a69874a..765bcb5a 100644
--- a/test/controller/ConferenceCtrlTest.scala
+++ b/test/controller/ConferenceCtrlTest.scala
@@ -26,7 +26,7 @@ class ConferenceCtrlTest extends BaseCtrlTest {
 
   @Test
   def testCreate(): Unit = {
-    val body = formatter.writes(assets.conferences(0)).as[JsObject] - "uuid" - "abstracts"
+    val body = formatter.writes(assets.conferences(0)).as[JsObject] - "uuid" - "abstracts" - "short"
 
     val createUnauth = FakeRequest(POST, "/api/conferences").withHeaders(
       ("Content-Type", "application/json")