diff --git a/stdlib/graphics/Window.aspl b/stdlib/graphics/Window.aspl
index 376387f..b1a7a1a 100644
--- a/stdlib/graphics/Window.aspl
+++ b/stdlib/graphics/Window.aspl
@@ -46,7 +46,7 @@ class Window{
 	[public]
 	property callback<Point, MouseButton> onMouseUp = callback(Point position, MouseButton button){}
 	[public]
-	property callback<Point, float, float> onMouseMove = callback(Point from, float deltaX, float deltaY){}
+	property callback<Point, float, float> onMouseMove = callback(Point end, float deltaX, float deltaY){}
 	[public]
 	property callback<Point, float, float> onMouseWheel = callback(Point position, float deltaX, float deltaY){}
 	[public]
@@ -101,8 +101,8 @@ class Window{
 		implement("graphics.window.set_on_mouse_up", handle, callback(float x, float y, int button){
 			onMouseUp.(new Point(x, y), MouseButton(button))
 		})
-		implement("graphics.window.set_on_mouse_move", handle, callback(float fromX, float fromY, float deltaX, float deltaY){
-			onMouseMove.(new Point(fromX, fromY), deltaX, deltaY)
+		implement("graphics.window.set_on_mouse_move", handle, callback(float endX, float endY, float deltaX, float deltaY){
+			onMouseMove.(new Point(endX, endY), deltaX, deltaY)
 		})
 		implement("graphics.window.set_on_mouse_wheel", handle, callback(float x, float y, float deltaX, float deltaY){
 			onMouseWheel.(new Point(x, y), deltaX, deltaY)
diff --git a/stdlib/gui/Control.aspl b/stdlib/gui/Control.aspl
index 4be807e..9d8357d 100644
--- a/stdlib/gui/Control.aspl
+++ b/stdlib/gui/Control.aspl
@@ -58,9 +58,9 @@ class Control {
         return false
     }
     [public]
-	method onMouseMove(Point from, float deltaX, float deltaY){}
+	method onMouseMove(Point end, float deltaX, float deltaY){}
 	[public]
-	method onMouseMoveAny(Point from, float deltaX, float deltaY) returns bool{
+	method onMouseMoveAny(Point end, float deltaX, float deltaY) returns bool{
         return false
     }
     [public]