diff --git a/osu.Game/Tests/Visual/OsuTestScene.cs b/osu.Game/Tests/Visual/OsuTestScene.cs
index cb9ed40b00..866fc215d6 100644
--- a/osu.Game/Tests/Visual/OsuTestScene.cs
+++ b/osu.Game/Tests/Visual/OsuTestScene.cs
@@ -305,8 +305,10 @@ protected override void UpdateState()
                     {
                         double refTime = referenceClock.CurrentTime;
 
-                        if (lastReferenceTime.HasValue)
-                            accumulated += (refTime - lastReferenceTime.Value) * Rate;
+                        double? lastRefTime = lastReferenceTime;
+
+                        if (lastRefTime != null)
+                            accumulated += (refTime - lastRefTime.Value) * Rate;
 
                         lastReferenceTime = refTime;
                     }