diff --git a/Engine.Input/Abstract/IButtonInputs.cs b/Engine.Input/Abstract/IButtonInputs.cs
index ab67252..7f6fa93 100644
--- a/Engine.Input/Abstract/IButtonInputs.cs
+++ b/Engine.Input/Abstract/IButtonInputs.cs
@@ -4,11 +4,13 @@ namespace Syntriax.Engine.Input;
 
 public interface IButtonInputs<T> : IAssignableStateEnable
 {
-    void RegisterOnPress(T button, Action<IButtonInputs<T>, T> callback);
-    void UnregisterOnPress(T button, Action<IButtonInputs<T>, T> callback);
-    void RegisterOnRelease(T button, Action<IButtonInputs<T>, T> callback);
-    void UnregisterOnRelease(T button, Action<IButtonInputs<T>, T> callback);
+    void RegisterOnPress(T button, ButtonCallbackDelegate callback);
+    void UnregisterOnPress(T button, ButtonCallbackDelegate callback);
+    void RegisterOnRelease(T button, ButtonCallbackDelegate callback);
+    void UnregisterOnRelease(T button, ButtonCallbackDelegate callback);
 
     bool IsPressed(T button);
     bool WasPressed(T button);
+
+    delegate void ButtonCallbackDelegate(IButtonInputs<T> buttonInputs, T button);
 }