diff --git a/Terminal.Gui/ConsoleDrivers/CursesDriver/CursesDriver.cs b/Terminal.Gui/ConsoleDrivers/CursesDriver/CursesDriver.cs
index b5fd61084c..f7563327ca 100644
--- a/Terminal.Gui/ConsoleDrivers/CursesDriver/CursesDriver.cs
+++ b/Terminal.Gui/ConsoleDrivers/CursesDriver/CursesDriver.cs
@@ -627,7 +627,7 @@ public override void PrepareToRun (MainLoop mainLoop, Action<KeyEvent> keyHandle
 			return true;
 		});
 
-		_mainLoop.WinChanged += ProcessInput;
+		_mainLoop.WinChanged = ProcessInput;
 	}
 
 	public override void Init (Action terminalResized)
diff --git a/Terminal.Gui/ConsoleDrivers/WindowsDriver.cs b/Terminal.Gui/ConsoleDrivers/WindowsDriver.cs
index 8918875639..18e6492b9f 100644
--- a/Terminal.Gui/ConsoleDrivers/WindowsDriver.cs
+++ b/Terminal.Gui/ConsoleDrivers/WindowsDriver.cs
@@ -861,9 +861,9 @@ public override void PrepareToRun (MainLoop mainLoop, Action<KeyEvent> keyHandle
 		_mouseHandler = mouseHandler;
 
 		_mainLoop = mainLoop.MainLoopDriver as WindowsMainLoop;
-		_mainLoop.ProcessInput += ProcessInput;
+		_mainLoop.ProcessInput = ProcessInput;
 #if HACK_CHECK_WINCHANGED
-		_mainLoop.WinChanged += ChangeWin;
+		_mainLoop.WinChanged = ChangeWin;
 #endif
 	}