diff --git a/akka-docs/src/test/scala/docs/stream/StreamTestKitDocSpec.scala b/akka-docs/src/test/scala/docs/stream/StreamTestKitDocSpec.scala
index 8abe845a78..d5becb8189 100644
--- a/akka-docs/src/test/scala/docs/stream/StreamTestKitDocSpec.scala
+++ b/akka-docs/src/test/scala/docs/stream/StreamTestKitDocSpec.scala
@@ -19,7 +19,8 @@ class StreamTestKitDocSpec extends AkkaSpec {
 
   "strict collection" in {
     //#strict-collection
-    val sinkUnderTest = Flow[Int].map(_ * 2).toMat(Sink.fold(0)(_ + _))(Keep.right)
+    val sinkUnderTest =
+      Flow[Int].map(_ * 2).toMat(Sink.fold(0)(_ + _))(Keep.right)
 
     val future = Source(1 to 4).runWith(sinkUnderTest)
     val result = Await.result(future, 3.seconds)