diff --git a/osu.Game.Tests/Visual/Gameplay/TestSceneUnstableRateCounter.cs b/osu.Game.Tests/Visual/Gameplay/TestSceneUnstableRateCounter.cs
index 2f572b46c9..d0e516ed39 100644
--- a/osu.Game.Tests/Visual/Gameplay/TestSceneUnstableRateCounter.cs
+++ b/osu.Game.Tests/Visual/Gameplay/TestSceneUnstableRateCounter.cs
@@ -22,12 +22,18 @@ namespace osu.Game.Tests.Visual.Gameplay
         [Cached(typeof(ScoreProcessor))]
         private TestScoreProcessor scoreProcessor = new TestScoreProcessor();
 
-        private readonly OsuHitWindows hitWindows = new OsuHitWindows();
+        private readonly OsuHitWindows hitWindows;
 
         private UnstableRateCounter counter;
 
         private double prev;
 
+        public TestSceneUnstableRateCounter()
+        {
+            hitWindows = new OsuHitWindows();
+            hitWindows.SetDifficulty(5);
+        }
+
         [SetUpSteps]
         public void SetUp()
         {