diff --git a/osu.Game.Rulesets.Mania/Beatmaps/Patterns/Pattern.cs b/osu.Game.Rulesets.Mania/Beatmaps/Patterns/Pattern.cs
index 331b92f8a4..15d31406e9 100644
--- a/osu.Game.Rulesets.Mania/Beatmaps/Patterns/Pattern.cs
+++ b/osu.Game.Rulesets.Mania/Beatmaps/Patterns/Pattern.cs
@@ -3,7 +3,6 @@
 
 using System.Collections.Generic;
 using System.Linq;
-using osu.Framework.Extensions.IEnumerableExtensions;
 using osu.Game.Rulesets.Mania.Objects;
 
 namespace osu.Game.Rulesets.Mania.Beatmaps.Patterns