diff --git a/src/test/java/com/bytelegend/ChallengeTest.java b/src/test/java/com/bytelegend/ChallengeTest.java
index f40b10c..23e1e76 100644
--- a/src/test/java/com/bytelegend/ChallengeTest.java
+++ b/src/test/java/com/bytelegend/ChallengeTest.java
@@ -16,7 +16,7 @@ public void test(CaptureSystemOutput.OutputCapture capture) {
         Dog dog2 = new Dog("Dog" + new Random().nextInt());
         capture.expect(
                 Matchers.containsString(
-                        dog1.getName() + " is walking\n" + dog2.getName() + " is walking\n"));
+                        dog1.getName() + " is walking" + System.lineSeparator() + dog2.getName() + " is walking" + System.lineSeparator()));
 
         Challenge.allDogsWalk(dog1, fish, dog2);
     }