diff --git a/src/Avalonia.Animation/Keyframes/KeyFramePair.cs b/src/Avalonia.Animation/Keyframes/KeyFramePair`1.cs
similarity index 100%
rename from src/Avalonia.Animation/Keyframes/KeyFramePair.cs
rename to src/Avalonia.Animation/Keyframes/KeyFramePair`1.cs
diff --git a/src/Avalonia.Animation/Keyframes/KeyFramesStateMachine.cs b/src/Avalonia.Animation/Keyframes/KeyFramesStateMachine`1.cs
similarity index 99%
rename from src/Avalonia.Animation/Keyframes/KeyFramesStateMachine.cs
rename to src/Avalonia.Animation/Keyframes/KeyFramesStateMachine`1.cs
index 9081908f75..f582a8a622 100644
--- a/src/Avalonia.Animation/Keyframes/KeyFramesStateMachine.cs
+++ b/src/Avalonia.Animation/Keyframes/KeyFramesStateMachine`1.cs
@@ -30,7 +30,6 @@ namespace Avalonia.Animation.Keyframes
         private Animation _targetAnimation;
         private Animatable _targetControl;
         internal bool _unsubscribe = false;
-        double _outputTime = 0d;
         private IObserver<object> _targetObserver;
 
         private enum KeyFramesStates
diff --git a/src/Avalonia.Animation/Keyframes/KeyFrames.cs b/src/Avalonia.Animation/Keyframes/KeyFrames`1.cs
similarity index 100%
rename from src/Avalonia.Animation/Keyframes/KeyFrames.cs
rename to src/Avalonia.Animation/Keyframes/KeyFrames`1.cs
diff --git a/src/Avalonia.Animation/Timing.cs b/src/Avalonia.Animation/Timing.cs
index 071e48f82c..10d65cca7f 100644
--- a/src/Avalonia.Animation/Timing.cs
+++ b/src/Avalonia.Animation/Timing.cs
@@ -15,7 +15,7 @@ namespace Avalonia.Animation
     /// </summary>
     public static class Timing
     {
-        static ulong _animationsFrameCount, _transitionsFrameCount;
+        static ulong _transitionsFrameCount;
         static PlayState _globalState = PlayState.Run;
 
         /// <summary>
diff --git a/src/Avalonia.Animation/Transitions/Transition.cs b/src/Avalonia.Animation/Transitions/Transition`1.cs
similarity index 100%
rename from src/Avalonia.Animation/Transitions/Transition.cs
rename to src/Avalonia.Animation/Transitions/Transition`1.cs