diff --git a/ProjectMonorail/DrawingMonorail.cs b/ProjectMonorail/DrawingMonorail.cs
index 9f12a7a..f9f31a5 100644
--- a/ProjectMonorail/DrawingMonorail.cs
+++ b/ProjectMonorail/DrawingMonorail.cs
@@ -106,10 +106,18 @@ public class DrawingMonorail
         {
             return;
         }
+        if (x < 0)
+        {
+            x = 0;
+        }
         if (x + _drawingMonorailWidth > _pictureWidth.Value)
         {
             x = _pictureWidth.Value - _drawingMonorailWidth;
         }
+        if (y < 0)
+        {
+            y = 0;
+        }
         if (y + _drawingMonorailHeight > _pictureHeight.Value)
         {
             y = _pictureHeight.Value - _drawingMonorailHeight;