diff --git a/osu.Game/Screens/Edit/Compose/Components/Timeline/TimelineBlueprintContainer.cs b/osu.Game/Screens/Edit/Compose/Components/Timeline/TimelineBlueprintContainer.cs
index 2d6dc797ca..04575e55b1 100644
--- a/osu.Game/Screens/Edit/Compose/Components/Timeline/TimelineBlueprintContainer.cs
+++ b/osu.Game/Screens/Edit/Compose/Components/Timeline/TimelineBlueprintContainer.cs
@@ -3,7 +3,6 @@
 
 #nullable disable
 
-using System;
 using System.Collections.Generic;
 using System.Linq;
 using osu.Framework.Allocation;
@@ -184,7 +183,7 @@ namespace osu.Game.Screens.Edit.Compose.Components.Timeline
             double maxTime = dragBox.MaxTime;
 
             SelectedItems.RemoveAll(hitObject => !shouldBeSelected(hitObject));
-            SelectedItems.AddRange(Beatmap.HitObjects.Except(SelectedItems).Where(hitObject => shouldBeSelected(hitObject)));
+            SelectedItems.AddRange(Beatmap.HitObjects.Except(SelectedItems).Where(shouldBeSelected));
 
             bool shouldBeSelected(HitObject hitObject) => minTime <= hitObject.StartTime && hitObject.StartTime <= maxTime;
         }
diff --git a/osu.Game/Screens/Edit/Compose/Components/Timeline/TimelineDragBox.cs b/osu.Game/Screens/Edit/Compose/Components/Timeline/TimelineDragBox.cs
index 4b16848c58..65d9293b7e 100644
--- a/osu.Game/Screens/Edit/Compose/Components/Timeline/TimelineDragBox.cs
+++ b/osu.Game/Screens/Edit/Compose/Components/Timeline/TimelineDragBox.cs
@@ -8,20 +8,17 @@ using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Shapes;
 using osu.Framework.Input.Events;
-using osu.Framework.Utils;
 
 namespace osu.Game.Screens.Edit.Compose.Components.Timeline
 {
     public class TimelineDragBox : DragBox
     {
-        public double MinTime => Math.Min(startTime.Value, endTime);
+        public double MinTime { get; private set; }
 
-        public double MaxTime => Math.Max(startTime.Value, endTime);
+        public double MaxTime { get; private set; }
 
         private double? startTime;
 
-        private double endTime;
-
         [Resolved]
         private Timeline timeline { get; set; }
 
@@ -34,7 +31,10 @@ namespace osu.Game.Screens.Edit.Compose.Components.Timeline
         public override void HandleDrag(MouseButtonEvent e)
         {
             startTime ??= timeline.TimeAtPosition(e.MouseDownPosition.X);
-            endTime = timeline.TimeAtPosition(e.MousePosition.X);
+            double endTime = timeline.TimeAtPosition(e.MousePosition.X);
+
+            MinTime = Math.Min(startTime.Value, endTime);
+            MaxTime = Math.Max(startTime.Value, endTime);
 
             Box.X = timeline.PositionAtTime(MinTime);
             Box.Width = timeline.PositionAtTime(MaxTime) - Box.X;