diff --git a/src/border_panel.rs b/src/border_panel.rs
index ca04dfc..d3c8848 100644
--- a/src/border_panel.rs
+++ b/src/border_panel.rs
@@ -82,8 +82,8 @@ pub fn draw_border_panel<'c, 'b>(
         .unwrap();
     let bitmap = bitmap
         .window_mut(
-            TILE_SIZE..tile_width - TILE_SIZE,
-            TILE_SIZE..tile_height - TILE_SIZE,
+            TILE_SIZE..pixel_width - TILE_SIZE,
+            TILE_SIZE..pixel_height - TILE_SIZE,
         )
         .unwrap();