diff --git a/src/Ryujinx/Common/ThemeManager.cs b/src/Ryujinx/Common/ThemeManager.cs
index 8c52c2a66..6da01bfa7 100644
--- a/src/Ryujinx/Common/ThemeManager.cs
+++ b/src/Ryujinx/Common/ThemeManager.cs
@@ -4,11 +4,11 @@ namespace Ryujinx.Ava.Common
 {
     public static class ThemeManager
     {
-        public static event EventHandler ThemeChanged;
+        public static event Action ThemeChanged;
 
         public static void OnThemeChanged()
         {
-            ThemeChanged?.Invoke(null, EventArgs.Empty);
+            ThemeChanged?.Invoke();
         }
     }
 }
diff --git a/src/Ryujinx/UI/ViewModels/AboutWindowViewModel.cs b/src/Ryujinx/UI/ViewModels/AboutWindowViewModel.cs
index 979ae8253..10256babe 100644
--- a/src/Ryujinx/UI/ViewModels/AboutWindowViewModel.cs
+++ b/src/Ryujinx/UI/ViewModels/AboutWindowViewModel.cs
@@ -27,7 +27,7 @@ namespace Ryujinx.Ava.UI.ViewModels
             ThemeManager.ThemeChanged += ThemeManager_ThemeChanged;
         }
 
-        private void ThemeManager_ThemeChanged(object sender, EventArgs e)
+        private void ThemeManager_ThemeChanged()
         {
             Dispatcher.UIThread.Post(() => UpdateLogoTheme(ConfigurationState.Instance.UI.BaseStyle.Value));
         }