diff --git a/akka-docs/src/test/java/jdocs/stream/operators/sourceorflow/Monitor.java b/akka-docs/src/test/java/jdocs/stream/operators/sourceorflow/Monitor.java
index 21188e19be..bd2a77ea7d 100644
--- a/akka-docs/src/test/java/jdocs/stream/operators/sourceorflow/Monitor.java
+++ b/akka-docs/src/test/java/jdocs/stream/operators/sourceorflow/Monitor.java
@@ -60,8 +60,8 @@ public class Monitor {
 
     // Periodically check the monitor
     Source.tick(Duration.ofMillis(200), Duration.ofMillis(400), "")
-            .runForeach(__ -> printMonitorState(monitor.state()), actorSystem);
-  // #monitor
+        .runForeach(__ -> printMonitorState(monitor.state()), actorSystem);
+    // #monitor
 
     run.second().toCompletableFuture().whenComplete((x, t) -> actorSystem.terminate());
   }