diff --git a/akka-docs/rst/scala/code/docs/stream/TwitterStreamQuickstartDocSpec.scala b/akka-docs/rst/scala/code/docs/stream/TwitterStreamQuickstartDocSpec.scala
index 388e161b8f..a158949d18 100644
--- a/akka-docs/rst/scala/code/docs/stream/TwitterStreamQuickstartDocSpec.scala
+++ b/akka-docs/rst/scala/code/docs/stream/TwitterStreamQuickstartDocSpec.scala
@@ -55,7 +55,7 @@ class TwitterStreamQuickstartDocSpec extends AkkaSpec {
 
   trait Example0 {
     //#tweet-source
-    val tweets: Source[Tweet, Unit]
+    val tweets: Source[Tweet, NotUsed]
     //#tweet-source
   }