diff --git a/src/mappings.rs b/src/mappings.rs
index 0166426..a4fd1fc 100644
--- a/src/mappings.rs
+++ b/src/mappings.rs
@@ -20,7 +20,7 @@ pub trait Select<'a> {
 
 #[derive(Debug)]
 pub struct LinearCoordView {
-    rect: Rectangle<Virtual>,
+    max_x: u8,
     idx: usize,
 }
 
@@ -34,7 +34,7 @@ pub type LinearCoords = Coordinates<LinearSpace>;
 impl<'a> CoordinateView<'a> for LinearCoordView {
     type Space = LinearSpace;
     fn next(&mut self) -> Option<(VirtualCoordinates, LinearCoords)> {
-        if self.idx as u8 == self.rect.bottom_right.x {
+        if self.idx as u8 == self.max_x {
             None
         } else {
             let virt = VirtualCoordinates::new(self.idx as u8, 0); // FIXME: scale8
@@ -62,7 +62,7 @@ impl<'a> Select<'a> for LinearPixelMapping {
     type View = LinearCoordView;
     fn select(&'a self, rect: &Rectangle<Virtual>) -> Self::View {
         LinearCoordView {
-            rect: rect.clone(),
+            max_x: rect.bottom_right.x,
             idx: 0,
         }
     }