diff --git a/src/core/graphics.rs b/src/core/graphics.rs
index a580d76..71d20af 100644
--- a/src/core/graphics.rs
+++ b/src/core/graphics.rs
@@ -622,6 +622,10 @@ impl<D: Display> Graphics<D> {
 
     pub fn change_layout(&mut self, layout: &Layout, mod_state: &[ModState])
     {
+        let (width, height) = self.disp.size();
+        self.x_scale = width as f64 / layout.width();
+        self.y_scale = height as f64 / layout.height();
+
         self.rasterize_labels(layout);
         self.draw(layout, mod_state);
     }