diff --git a/crates/presenter/src/theme.rs b/crates/presenter/src/theme.rs
index 42d39f2..08c798c 100644
--- a/crates/presenter/src/theme.rs
+++ b/crates/presenter/src/theme.rs
@@ -142,7 +142,7 @@ mod tests {
         let (width, height) = tile_viewport(BgFill::Tile, (1180, 760));
         assert_eq!(width % TILE_REGENERATE_STEP, 0);
         assert_eq!(height % TILE_REGENERATE_STEP, 0);
-        assert_eq!((width, height), (1152, 768));
+        assert_eq!((width, height), (1152, 640));
     }
 
     #[test]