diff --git a/DroneSimulator/Screen2D.cs b/DroneSimulator/Screen2D.cs
index 383408f..f3fbf68 100644
--- a/DroneSimulator/Screen2D.cs
+++ b/DroneSimulator/Screen2D.cs
@@ -175,15 +175,12 @@ namespace DroneSimulator
 
             pos *= Scale;
 
-            pos.X += MainArea.Width / 2;
-            pos.Y += MainArea.Height / 2;
-
             foreach (var d in DroneList)
             {
                 if (d.ID != id) continue;
 
-                d.PosXY.X = (int)pos.X;
-                d.PosXY.Y = MainArea.Height - (int)pos.Y;
+                d.PosXY.X = MainArea.Width / 2 + (int)pos.Y;
+                d.PosXY.Y = MainArea.Height / 2 - (int)pos.X;
                 d.Height = (int)pos.Z;
 
                 d.TiltXY.X = tilt.X * TO_RADI;