diff --git a/akka-actor/src/main/scala/akka/actor/ActorCell.scala b/akka-actor/src/main/scala/akka/actor/ActorCell.scala
index 0cf42079b1..83d586b6af 100644
--- a/akka-actor/src/main/scala/akka/actor/ActorCell.scala
+++ b/akka-actor/src/main/scala/akka/actor/ActorCell.scala
@@ -227,9 +227,6 @@ private[akka] class ActorCell(
 
   def uuid: Uuid = self.uuid
 
-  //FIXME TODO REMOVE THIS
-  def actorClass: Class[_] = actor.getClass
-
   def dispatcher: MessageDispatcher = props.dispatcher
 
   def isShutdown: Boolean = mailbox.isClosed
diff --git a/akka-actor/src/main/scala/akka/actor/ActorRef.scala b/akka-actor/src/main/scala/akka/actor/ActorRef.scala
index 74633b9a20..3622500f8d 100644
--- a/akka-actor/src/main/scala/akka/actor/ActorRef.scala
+++ b/akka-actor/src/main/scala/akka/actor/ActorRef.scala
@@ -237,8 +237,6 @@ class LocalActorRef private[akka] (
 
   // ========= AKKA PROTECTED FUNCTIONS =========
 
-  protected[akka] def actorClass: Class[_] = actorCell.actorClass
-
   protected[akka] def underlying: ActorCell = actorCell
 
   // FIXME TODO: remove this method
diff --git a/akka-remote/src/main/scala/akka/serialization/SerializationProtocol.scala b/akka-remote/src/main/scala/akka/serialization/SerializationProtocol.scala
index 8e428e4552..3e6ea8f2fb 100644
--- a/akka-remote/src/main/scala/akka/serialization/SerializationProtocol.scala
+++ b/akka-remote/src/main/scala/akka/serialization/SerializationProtocol.scala
@@ -69,9 +69,6 @@ object ActorSerialization {
       .setAddress(actorRef.address)
       .setTimeout(actorRef.timeout)
 
-    if (localRef.isDefined)
-      builder.setActorClassname(localRef.get.actorClass.getName) //TODO FIXME Why is the classname needed anymore?
-
     replicationScheme match {
       case _: Transient | Transient ⇒
         builder.setReplicationStorage(ReplicationStorageType.TRANSIENT)