diff --git a/akka-docs/rst/scala/code/docs/testkit/PlainWordSpec.scala b/akka-docs/rst/scala/code/docs/testkit/PlainWordSpec.scala
index c331c8fedf0..0ebfa554b16 100644
--- a/akka-docs/rst/scala/code/docs/testkit/PlainWordSpec.scala
+++ b/akka-docs/rst/scala/code/docs/testkit/PlainWordSpec.scala
@@ -13,12 +13,10 @@ import org.scalatest.Matchers
 import org.scalatest.BeforeAndAfterAll
 
 //#implicit-sender
-class MySpec(_system: ActorSystem) extends TestKit(_system) with ImplicitSender
+class MySpec() extends TestKit(ActorSystem("MySpec")) with ImplicitSender
   with WordSpecLike with Matchers with BeforeAndAfterAll {
   //#implicit-sender
 
-  def this() = this(ActorSystem("MySpec"))
-
   override def afterAll {
     TestKit.shutdownActorSystem(system)
   }