diff --git a/src/Consolonia.Core/Controls/ConsoloniaAccessText.cs b/src/Consolonia.Core/Controls/ConsoloniaAccessText.cs
index a6c83416..082d0bb4 100644
--- a/src/Consolonia.Core/Controls/ConsoloniaAccessText.cs
+++ b/src/Consolonia.Core/Controls/ConsoloniaAccessText.cs
@@ -9,9 +9,8 @@ namespace Consolonia.Core.Controls
     /// <summary>
     /// A text block that displays a character prefixed with an underscore as an access key.
     /// </summary>
-    public class ConsoloniaAccessText : AccessText, IDisposable
+    public sealed class ConsoloniaAccessText : AccessText
     {
-        private bool _disposed;
         private Run _accessRun;
 
         public ConsoloniaAccessText()
@@ -19,12 +18,6 @@ public ConsoloniaAccessText()
             this.PropertyChanged += OnPropertyChanged;
         }
 
-        public void Dispose()
-        {
-            this.PropertyChanged -= OnPropertyChanged;
-            _disposed = true;
-        }
-
         private void OnPropertyChanged(object sender, Avalonia.AvaloniaPropertyChangedEventArgs e)
         {
             switch (e.Property.Name)
@@ -64,9 +57,6 @@ private void OnPropertyChanged(object sender, Avalonia.AvaloniaPropertyChangedEv
                             _accessRun.TextDecorations.Clear();
                     }
                     break;
-
-                default:
-                    break;
             }
         }
     }