From dfba5839c6be8b60c58edae268b4fff0672e3c80 Mon Sep 17 00:00:00 2001
From: Patrik Nordwall <patrik.nordwall@gmail.com>
Date: Tue, 14 Aug 2012 17:30:49 +0200
Subject: [PATCH] sealed Tick, see #2270

---
 akka-cluster/src/main/scala/akka/cluster/ClusterDaemon.scala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/akka-cluster/src/main/scala/akka/cluster/ClusterDaemon.scala b/akka-cluster/src/main/scala/akka/cluster/ClusterDaemon.scala
index 3adbbae324..ff954a83cf 100644
--- a/akka-cluster/src/main/scala/akka/cluster/ClusterDaemon.scala
+++ b/akka-cluster/src/main/scala/akka/cluster/ClusterDaemon.scala
@@ -75,7 +75,7 @@ private[cluster] object InternalClusterAction {
   /**
    * Marker interface for periodic tick messages
    */
-  trait Tick
+  sealed trait Tick
 
   case object GossipTick extends Tick