diff --git a/osu.Game.Tests/Visual/Online/TestSceneBeatmapSetOverlayDetails.cs b/osu.Game.Tests/Visual/Online/TestSceneBeatmapSetOverlayDetails.cs
index 2a45e68c0a..96c0c59695 100644
--- a/osu.Game.Tests/Visual/Online/TestSceneBeatmapSetOverlayDetails.cs
+++ b/osu.Game.Tests/Visual/Online/TestSceneBeatmapSetOverlayDetails.cs
@@ -44,7 +44,7 @@ namespace osu.Game.Tests.Visual.Online
             AddStep("set second set", () => details.BeatmapSet = secondSet);
             AddAssert("ratings set", () => details.Ratings.Metrics == secondSet.Metrics);
 
-            BeatmapSetInfo createSet() => new BeatmapSetInfo
+            static BeatmapSetInfo createSet() => new BeatmapSetInfo
             {
                 Metrics = new BeatmapSetMetrics { Ratings = Enumerable.Range(0, 11).Select(_ => RNG.Next(10)).ToArray() },
                 Beatmaps = new List<BeatmapInfo>