diff --git a/osu.Game/Overlays/BeatmapSet/Buttons/PreviewButton.cs b/osu.Game/Overlays/BeatmapSet/Buttons/PreviewButton.cs
index 56d60a97b2..a5e5f664c9 100644
--- a/osu.Game/Overlays/BeatmapSet/Buttons/PreviewButton.cs
+++ b/osu.Game/Overlays/BeatmapSet/Buttons/PreviewButton.cs
@@ -18,8 +18,6 @@ namespace osu.Game.Overlays.BeatmapSet.Buttons
 {
     public class PreviewButton : OsuClickableContainer
     {
-        private const float transition_duration = 500;
-
         private readonly Box background, progress;
         private readonly PlayButton playButton;