diff --git a/src/test/java/com/insightfullogic/java8/examples/chapter3/RefactorTest.java b/src/test/java/com/insightfullogic/java8/examples/chapter3/RefactorTest.java
index a10f9363..ecf44cc9 100644
--- a/src/test/java/com/insightfullogic/java8/examples/chapter3/RefactorTest.java
+++ b/src/test/java/com/insightfullogic/java8/examples/chapter3/RefactorTest.java
@@ -4,7 +4,9 @@
 import com.insightfullogic.java8.examples.chapter1.SampleData;
 import org.junit.Test;
 
+import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 import java.util.Set;
 import java.util.function.Supplier;
@@ -35,7 +37,10 @@ public void allStringJoins() {
             Refactor.LongTrackFinder longTrackFinder = finder.get();
             Set<String> longTracks = longTrackFinder.findLongTracks(albums);
 
-            assertEquals("[Acknowledgement, Resolution]", longTracks.toString());
+	    List<String> result = new ArrayList<String>(longTracks);
+	    Collections.sort(result);
+
+            assertEquals("[Acknowledgement, Resolution]", result.toString());
 
             longTracks = longTrackFinder.findLongTracks(noTracks);