diff --git a/akka-actor/src/main/scala/akka/dispatch/Mailbox.scala b/akka-actor/src/main/scala/akka/dispatch/Mailbox.scala
index 026ad67875..ae54c5bf50 100644
--- a/akka-actor/src/main/scala/akka/dispatch/Mailbox.scala
+++ b/akka-actor/src/main/scala/akka/dispatch/Mailbox.scala
@@ -205,7 +205,7 @@ abstract class Mailbox(val actor: ActorCell) extends AbstractMailbox with Messag
       }
     } catch {
       case e ⇒
-        actor.app.eventStream.publish(Error(e, this, "exception during processing system messages, dropping " + SystemMessage.size(nextMessage) + " messages!"))
+        actor.app.eventStream.publish(Error(e, actor.self, "exception during processing system messages, dropping " + SystemMessage.size(nextMessage) + " messages!"))
         throw e
     }
   }